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cos(n°)

Suma de la serie cos(n°)



=

Solución

Ha introducido [src]
  36           
 ___           
 \  `          
  \      /n*pi\
   )  cos|----|
  /      \360 /
 /__,          
n = 1          
$$\sum_{n=1}^{36} \cos{\left(\frac{\pi n}{360} \right)}$$
Sum(cos((n*pi)/360), (n, 1, 36))
Velocidad de la convergencia de la serie
Respuesta [src]
                              ___________        ___________                                                                                                                                                                   /     ___________                    \ /           ___________                    \                                                                      //       ___________                    \ /           ___________                    \   /             ___________                    \ /                         ___________\\                                                                      //       ___________                    \ /           ___________                    \   /           ___________                    \ /                       ___________\\                                                                        //     ___________                    \ /           ___________                    \   /                               ___________\ /                         ___________\\                                                                      //     ___________                    \ /           ___________                    \   /           ___________                    \ /                       ___________\\                                                                        //     ___________                    \ /             ___________                    \   /                               ___________\ /                       ___________\\   //       ___________                    \ /                               ___________\   /             ___________                    \ /                       ___________\\                                                                          /                               ___________\ /                         ___________\              ___________                                  ___________              ___________                                                                                                                                                                                                                                                                                                                  
                             /       ___        /       ___                                                                                                                                                                    |    /       ___          /      ___\| |          /       ___          /      ___\|                                                                      ||      /       ___          /      ___\| |          /       ___          /      ___\|   |            /       ___          /      ___\| |                        /       ___ ||                                                                      ||      /       ___          /      ___\| |          /       ___          /      ___\|   |          /       ___          /      ___\| |                      /       ___ ||                                                                        ||    /       ___          /      ___\| |          /       ___          /      ___\|   |      /      ___\             /       ___ | |                        /       ___ ||                                                                      ||    /       ___          /      ___\| |          /       ___          /      ___\|   |          /       ___          /      ___\| |                      /       ___ ||                                                                        ||    /       ___          /      ___\| |            /       ___          /      ___\|   |      /      ___\             /       ___ | |                      /       ___ ||   ||      /       ___          /      ___\| |      /      ___\             /       ___ |   |            /       ___          /      ___\| |                      /       ___ ||                                                                          |      /      ___\             /       ___ | |                        /       ___ |             /       ___          /      ___\             /       ___              /       ___          /      ___\                                                                                                                                                                                                                                                                                              
           ___________      /  1   \/ 2        /  5   \/ 5                                  ___________      ___________        ___________                      ___________      ___________        ___________               |   /  5   \/ 5       ___ |1   \/ 5 || |  ___    /  5   \/ 5       ___ |1   \/ 5 ||   /     ___________      ___________        ___________            \ ||     /  5   \/ 5       ___ |1   \/ 5 || |  ___    /  5   \/ 5       ___ |1   \/ 5 ||   |    ___    /  5   \/ 5       ___ |1   \/ 5 || |                ___    /  5   \/ 5  ||   /     ___________      ___________        ___________            \ ||     /  5   \/ 5       ___ |1   \/ 5 || |  ___    /  5   \/ 5       ___ |1   \/ 5 ||   |  ___    /  5   \/ 5       ___ |1   \/ 5 || |              ___    /  5   \/ 5  ||   /     ___________                      ___________      ___________\ ||   /  5   \/ 5       ___ |1   \/ 5 || |  ___    /  5   \/ 5       ___ |1   \/ 5 ||   |  ___ |1   \/ 5 |     ___    /  5   \/ 5  | |                ___    /  5   \/ 5  ||   /     ___________                    ___________      ___________\ ||   /  5   \/ 5       ___ |1   \/ 5 || |  ___    /  5   \/ 5       ___ |1   \/ 5 ||   |  ___    /  5   \/ 5       ___ |1   \/ 5 || |              ___    /  5   \/ 5  ||   /     ___________      ___________        ___________              \ ||   /  5   \/ 5       ___ |1   \/ 5 || |    ___    /  5   \/ 5       ___ |1   \/ 5 ||   |  ___ |1   \/ 5 |     ___    /  5   \/ 5  | |              ___    /  5   \/ 5  ||   ||     /  5   \/ 5       ___ |1   \/ 5 || |  ___ |1   \/ 5 |     ___    /  5   \/ 5  |   |    ___    /  5   \/ 5       ___ |1   \/ 5 || |              ___    /  5   \/ 5  || /       ___________      ___________        ___________              \   |  ___ |1   \/ 5 |     ___    /  5   \/ 5  | |                ___    /  5   \/ 5  |     ___    /  5   \/ 5       ___ |1   \/ 5 |     ___    /  1   \/ 2       ___    /  5   \/ 5       ___ |1   \/ 5 |                                                                                                                                                                                                                                                                                              
          /       ___      /   - - -----      /   - - -----      ___     ___     ___       /       ___      /       ___        /       ___  /        ___\       /       ___      /       ___        /       ___  /      ___\   |  /   - - -----    \/ 3 *|- + -----|| |\/ 2 *  /   - - -----    \/ 2 *|- + -----||   |    /       ___      /       ___        /       ___  /      ___\| ||    /   - - -----    \/ 3 *|- + -----|| |\/ 2 *  /   - - -----    \/ 2 *|- + -----||   |  \/ 2 *  /   - - -----    \/ 2 *|- + -----|| |        ___   \/ 3 *  /   - - ----- ||   |    /       ___      /       ___        /       ___  /      ___\| ||    /   - - -----    \/ 3 *|- + -----|| |\/ 2 *  /   - - -----    \/ 2 *|- + -----||   |\/ 2 *  /   - - -----    \/ 2 *|- + -----|| |      ___   \/ 3 *  /   - - ----- ||   |    /       ___  /        ___\       /       ___      /       ___ | ||  /   - - -----    \/ 3 *|- + -----|| |\/ 2 *  /   - - -----    \/ 2 *|- + -----||   |\/ 2 *|- + -----|   \/ 2 *  /   - - ----- | |        ___   \/ 3 *  /   - - ----- ||   |    /       ___  /      ___\       /       ___      /       ___ | ||  /   - + -----    \/ 3 *|- - -----|| |\/ 2 *  /   - + -----    \/ 2 *|- - -----||   |\/ 2 *  /   - + -----    \/ 2 *|- - -----|| |      ___   \/ 3 *  /   - + ----- ||   |    /       ___      /       ___        /       ___  /        ___\| ||  /   - - -----    \/ 3 *|- + -----|| |  \/ 2 *  /   - - -----    \/ 2 *|- + -----||   |\/ 2 *|- + -----|   \/ 2 *  /   - - ----- | |      ___   \/ 3 *  /   - - ----- ||   ||    /   - + -----    \/ 3 *|- - -----|| |\/ 2 *|- - -----|   \/ 2 *  /   - + ----- |   |  \/ 2 *  /   - + -----    \/ 2 *|- - -----|| |      ___   \/ 3 *  /   - + ----- || |      /       ___      /       ___        /       ___  /        ___\|   |\/ 2 *|- + -----|   \/ 2 *  /   - - ----- | |        ___   \/ 3 *  /   - - ----- |   \/ 2 *  /   - - -----    \/ 2 *|- + -----|   \/ 3 *  /   - + -----    \/ 3 *  /   - + -----    \/ 3 *|- + -----|                                                                                                                                                                                                                                                                                              
  1      /  5   \/ 5     \/    2     4      \/    8     8      \/ 2    \/ 6    \/ 5       /  1   \/ 2      /  5   \/ 5        /  1   \/ 2   |  1   \/ 5 |      /  1   \/ 2      /  5   \/ 5        /  1   \/ 2   |1   \/ 5 |   |\/    8     8            \4     4  /| |      \/    8     8            \4     4  /|   |   /  1   \/ 2      /  5   \/ 5        /  1   \/ 2   |1   \/ 5 || ||  \/    8     8            \4     4  /| |      \/    8     8            \4     4  /|   |        \/    8     8            \4     4  /| |  1   \/ 5          \/    8     8   ||   |   /  1   \/ 2      /  5   \/ 5        /  1   \/ 2   |1   \/ 5 || ||  \/    8     8            \4     4  /| |      \/    8     8            \4     4  /|   |      \/    8     8            \4     4  /| |1   \/ 5          \/    8     8   ||   |   /  1   \/ 2   |  1   \/ 5 |      /  1   \/ 2      /  5   \/ 5  | ||\/    8     8            \4     4  /| |      \/    8     8            \4     4  /|   |      \4     4  /         \/    8     8   | |  1   \/ 5          \/    8     8   ||   |   /  1   \/ 2   |1   \/ 5 |      /  1   \/ 2      /  5   \/ 5  | ||\/    8     8            \4     4  /| |      \/    8     8            \4     4  /|   |      \/    8     8            \4     4  /| |1   \/ 5          \/    8     8   ||   |   /  1   \/ 2      /  5   \/ 5        /  1   \/ 2   |  1   \/ 5 || ||\/    8     8            \4     4  /| |        \/    8     8            \4     4  /|   |      \4     4  /         \/    8     8   | |1   \/ 5          \/    8     8   ||   ||  \/    8     8            \4     4  /| |      \4     4  /         \/    8     8   |   |        \/    8     8            \4     4  /| |1   \/ 5          \/    8     8   || |     /  1   \/ 2      /  5   \/ 5        /  1   \/ 2   |  1   \/ 5 ||   |      \4     4  /         \/    8     8   | |  1   \/ 5          \/    8     8   |         \/    8     8            \4     4  /         \/    2     4            \/    8     8            \4     4  /      /pi\      /pi\      /pi\      /pi\      /pi\      / pi\      / pi\      /2*pi\      /4*pi\      /5*pi\      /7*pi\      /7*pi\      /7*pi\      /7*pi\      /11*pi\      /11*pi\      /13*pi\      /13*pi\      /17*pi\      /17*pi\      /19*pi\      /23*pi\      /29*pi\      /31*pi\
- - +   /   - + -----  + ---------------- + ---------------- + ----- + ----- + ----- +   /   - - ----- *  /   - - -----  +   /   - - ----- *|- - + -----| +   /   - + ----- *  /   - + -----  +   /   - + ----- *|- + -----| + |---------------- + -----------------|*|---------------------- + -----------------| + |  /   - - ----- *  /   - + -----  +   /   - + ----- *|- - -----||*||- ---------------- - -----------------|*|---------------------- - -----------------| + |- ---------------------- - -----------------|*|- - - ----- + ----------------------|| + |  /   - - ----- *  /   - + -----  -   /   - + ----- *|- - -----||*||- ---------------- + -----------------|*|---------------------- - -----------------| + |---------------------- + -----------------|*|- + ----- + ----------------------|| + |  /   - - ----- *|- - + -----| +   /   - + ----- *  /   - + ----- |*||---------------- + -----------------|*|---------------------- + -----------------| + |----------------- - ----------------------|*|- - - ----- + ----------------------|| + |  /   - - ----- *|- + -----| +   /   - + ----- *  /   - - ----- |*||---------------- - -----------------|*|---------------------- + -----------------| + |---------------------- - -----------------|*|- - ----- + ----------------------|| + |  /   - + ----- *  /   - + -----  -   /   - - ----- *|- - + -----||*||---------------- - -----------------|*|- ---------------------- - -----------------| + |----------------- - ----------------------|*|- + ----- + ----------------------|| + ||- ---------------- + -----------------|*|----------------- - ----------------------| + |- ---------------------- - -----------------|*|- - ----- + ----------------------||*|-   /   - - ----- *  /   - - -----  -   /   - + ----- *|- - - -----|| + |----------------- - ----------------------|*|- - - ----- + ----------------------| + ---------------------- + ----------------- + ---------------------- + ---------------------- + ----------------- + cos|--| + cos|--| + cos|--| + cos|--| + cos|--| + cos|---| + cos|---| + cos|----| + cos|----| + cos|----| + cos|----| + cos|----| + cos|----| + cos|----| + cos|-----| + cos|-----| + cos|-----| + cos|-----| + cos|-----| + cos|-----| + cos|-----| + cos|-----| + cos|-----| + cos|-----|
  8   \/    8     8             2                  2             4       4       8     \/    2     4    \/    8     8      \/    2     4    \  4     4  /   \/    2     4    \/    8     8      \/    2     4    \4     4  /   \       2                   2        / \          2                      2        /   \\/    2     4    \/    8     8      \/    2     4    \4     4  // \\         2                   2        / \          2                      2        /   \            2                      2        / \  8     8               2           //   \\/    2     4    \/    8     8      \/    2     4    \4     4  // \\         2                   2        / \          2                      2        /   \          2                      2        / \8     8               2           //   \\/    2     4    \  4     4  /   \/    2     4    \/    8     8   / \\       2                   2        / \          2                      2        /   \        2                     2           / \  8     8               2           //   \\/    2     4    \4     4  /   \/    2     4    \/    8     8   / \\       2                   2        / \          2                      2        /   \          2                      2        / \8     8               2           //   \\/    2     4    \/    8     8      \/    2     4    \  4     4  // \\       2                   2        / \            2                      2        /   \        2                     2           / \8     8               2           //   \\         2                   2        / \        2                     2           /   \            2                      2        / \8     8               2           // \  \/    2     4    \/    8     8      \/    2     4    \  4     4  //   \        2                     2           / \  8     8               2           /             2                      2                     2                        2                      2              \18/      \36/      \45/      \72/      \90/      \180/      \360/      \ 45 /      \ 45 /      \ 72 /      \ 72 /      \ 90 /      \180 /      \360 /      \ 180 /      \ 360 /      \ 180 /      \ 360 /      \ 180 /      \ 360 /      \ 360 /      \ 360 /      \ 360 /      \ 360 /
$$- \frac{1}{8} + \left(\left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right) \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}\right) \left(\left(- \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} - \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) \left(- \frac{\sqrt{5}}{8} - \frac{1}{8} + \frac{\sqrt{3} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) + \left(- \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} + \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) \left(- \frac{\sqrt{3} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} - \frac{\sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right)\right) + \left(- \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) \left(- \frac{\sqrt{5}}{8} - \frac{1}{8} + \frac{\sqrt{3} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) + \left(- \frac{1}{4} + \frac{\sqrt{5}}{4}\right) \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + \left(- \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}} - \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} \left(- \frac{\sqrt{5}}{4} - \frac{1}{4}\right)\right) \left(\left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} - \frac{\sqrt{2} \left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right)}{2}\right) \left(- \frac{\sqrt{5}}{8} + \frac{1}{8} + \frac{\sqrt{3} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2}\right) + \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} + \frac{\sqrt{2} \left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right)}{2}\right) \left(- \frac{\sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} + \frac{\sqrt{3} \left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right)}{2}\right)\right) + \frac{\sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}} + \frac{\sqrt{5}}{8} + \frac{\sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{2}}{4} + \left(- \left(- \frac{1}{4} + \frac{\sqrt{5}}{4}\right) \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}\right) \left(\left(- \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) \left(\frac{1}{8} + \frac{\sqrt{5}}{8} + \frac{\sqrt{3} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) + \left(- \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} - \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) \left(- \frac{\sqrt{3} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} + \frac{\sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right)\right) + \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \left(- \left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right) \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}\right) \left(\left(- \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} + \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) \left(- \frac{\sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{3} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) + \left(\frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) \left(\frac{1}{8} + \frac{\sqrt{5}}{8} + \frac{\sqrt{3} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right)\right) + \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} + \frac{\sqrt{6}}{4} + \frac{\sqrt{3} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2} + \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right) \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + \left(\left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right) \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}\right) \left(\left(\frac{\sqrt{2} \left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right)}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2}\right) \left(- \frac{\sqrt{3} \left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right)}{2} + \frac{\sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2}\right) + \left(- \frac{\sqrt{2} \left(\frac{1}{4} - \frac{\sqrt{5}}{4}\right)}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2}\right) \left(- \frac{\sqrt{5}}{8} + \frac{1}{8} + \frac{\sqrt{3} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2}\right)\right) + \frac{\sqrt{3} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{3} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} + \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}} + \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}} + \cos{\left(\frac{7 \pi}{72} \right)} + \cos{\left(\frac{17 \pi}{180} \right)} + \cos{\left(\frac{4 \pi}{45} \right)} + \cos{\left(\frac{31 \pi}{360} \right)} + \cos{\left(\frac{29 \pi}{360} \right)} + \cos{\left(\frac{7 \pi}{90} \right)} + \cos{\left(\frac{13 \pi}{180} \right)} + \cos{\left(\frac{5 \pi}{72} \right)} + \cos{\left(\frac{23 \pi}{360} \right)} + \cos{\left(\frac{11 \pi}{180} \right)} + \left(\frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) \left(\frac{\sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{3} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) + \cos{\left(\frac{\pi}{18} \right)} + \cos{\left(\frac{19 \pi}{360} \right)} + \cos{\left(\frac{17 \pi}{360} \right)} + \cos{\left(\frac{2 \pi}{45} \right)} + \cos{\left(\frac{7 \pi}{180} \right)} + \cos{\left(\frac{13 \pi}{360} \right)} + \cos{\left(\frac{11 \pi}{360} \right)} + \left(\left(- \frac{1}{4} + \frac{\sqrt{5}}{4}\right) \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}\right) \left(\left(- \frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) \left(- \frac{\sqrt{5}}{8} - \frac{1}{8} + \frac{\sqrt{3} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2}\right) + \left(\frac{\sqrt{2} \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{2} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right) \left(\frac{\sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} + \frac{\sqrt{3} \left(\frac{1}{4} + \frac{\sqrt{5}}{4}\right)}{2}\right)\right) + \cos{\left(\frac{\pi}{36} \right)} + \cos{\left(\frac{\pi}{45} \right)} + \cos{\left(\frac{7 \pi}{360} \right)} + \cos{\left(\frac{\pi}{72} \right)} + \cos{\left(\frac{\pi}{90} \right)} + \cos{\left(\frac{\pi}{180} \right)} + \cos{\left(\frac{\pi}{360} \right)}$$
-1/8 + sqrt(5/8 + sqrt(5)/8) + sqrt(1/2 - sqrt(2)/4)/2 + sqrt(5/8 - sqrt(5)/8)/2 + sqrt(2)/4 + sqrt(6)/4 + sqrt(5)/8 + sqrt(1/2 - sqrt(2)/4)*sqrt(5/8 - sqrt(5)/8) + sqrt(1/2 - sqrt(2)/4)*(-1/4 + sqrt(5)/4) + sqrt(1/2 + sqrt(2)/4)*sqrt(5/8 + sqrt(5)/8) + sqrt(1/2 + sqrt(2)/4)*(1/4 + sqrt(5)/4) + (sqrt(5/8 - sqrt(5)/8)/2 + sqrt(3)*(1/4 + sqrt(5)/4)/2)*(sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 + sqrt(2)*(1/4 + sqrt(5)/4)/2) + (sqrt(1/2 - sqrt(2)/4)*sqrt(5/8 + sqrt(5)/8) + sqrt(1/2 + sqrt(2)/4)*(1/4 - sqrt(5)/4))*((-sqrt(5/8 - sqrt(5)/8)/2 - sqrt(3)*(1/4 + sqrt(5)/4)/2)*(sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 - sqrt(2)*(1/4 + sqrt(5)/4)/2) + (-sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 - sqrt(2)*(1/4 + sqrt(5)/4)/2)*(-1/8 - sqrt(5)/8 + sqrt(3)*sqrt(5/8 - sqrt(5)/8)/2)) + (sqrt(1/2 - sqrt(2)/4)*sqrt(5/8 + sqrt(5)/8) - sqrt(1/2 + sqrt(2)/4)*(1/4 - sqrt(5)/4))*((-sqrt(5/8 - sqrt(5)/8)/2 + sqrt(3)*(1/4 + sqrt(5)/4)/2)*(sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 - sqrt(2)*(1/4 + sqrt(5)/4)/2) + (sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 + sqrt(2)*(1/4 + sqrt(5)/4)/2)*(1/8 + sqrt(5)/8 + sqrt(3)*sqrt(5/8 - sqrt(5)/8)/2)) + (sqrt(1/2 - sqrt(2)/4)*(-1/4 + sqrt(5)/4) + sqrt(1/2 + sqrt(2)/4)*sqrt(5/8 + sqrt(5)/8))*((sqrt(5/8 - sqrt(5)/8)/2 + sqrt(3)*(1/4 + sqrt(5)/4)/2)*(sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 + sqrt(2)*(1/4 + sqrt(5)/4)/2) + (sqrt(2)*(1/4 + sqrt(5)/4)/2 - sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2)*(-1/8 - sqrt(5)/8 + sqrt(3)*sqrt(5/8 - sqrt(5)/8)/2)) + (sqrt(1/2 - sqrt(2)/4)*(1/4 + sqrt(5)/4) + sqrt(1/2 + sqrt(2)/4)*sqrt(5/8 - sqrt(5)/8))*((sqrt(5/8 + sqrt(5)/8)/2 - sqrt(3)*(1/4 - sqrt(5)/4)/2)*(sqrt(2)*sqrt(5/8 + sqrt(5)/8)/2 + sqrt(2)*(1/4 - sqrt(5)/4)/2) + (sqrt(2)*sqrt(5/8 + sqrt(5)/8)/2 - sqrt(2)*(1/4 - sqrt(5)/4)/2)*(1/8 - sqrt(5)/8 + sqrt(3)*sqrt(5/8 + sqrt(5)/8)/2)) + (sqrt(1/2 + sqrt(2)/4)*sqrt(5/8 + sqrt(5)/8) - sqrt(1/2 - sqrt(2)/4)*(-1/4 + sqrt(5)/4))*((sqrt(5/8 - sqrt(5)/8)/2 - sqrt(3)*(1/4 + sqrt(5)/4)/2)*(-sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 - sqrt(2)*(1/4 + sqrt(5)/4)/2) + (sqrt(2)*(1/4 + sqrt(5)/4)/2 - sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2)*(1/8 + sqrt(5)/8 + sqrt(3)*sqrt(5/8 - sqrt(5)/8)/2)) + ((-sqrt(5/8 + sqrt(5)/8)/2 + sqrt(3)*(1/4 - sqrt(5)/4)/2)*(sqrt(2)*(1/4 - sqrt(5)/4)/2 - sqrt(2)*sqrt(5/8 + sqrt(5)/8)/2) + (-sqrt(2)*sqrt(5/8 + sqrt(5)/8)/2 - sqrt(2)*(1/4 - sqrt(5)/4)/2)*(1/8 - sqrt(5)/8 + sqrt(3)*sqrt(5/8 + sqrt(5)/8)/2))*(-sqrt(1/2 - sqrt(2)/4)*sqrt(5/8 - sqrt(5)/8) - sqrt(1/2 + sqrt(2)/4)*(-1/4 - sqrt(5)/4)) + (sqrt(2)*(1/4 + sqrt(5)/4)/2 - sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2)*(-1/8 - sqrt(5)/8 + sqrt(3)*sqrt(5/8 - sqrt(5)/8)/2) + sqrt(2)*sqrt(5/8 - sqrt(5)/8)/2 + sqrt(2)*(1/4 + sqrt(5)/4)/2 + sqrt(3)*sqrt(1/2 + sqrt(2)/4)/2 + sqrt(3)*sqrt(5/8 + sqrt(5)/8)/2 + sqrt(3)*(1/4 + sqrt(5)/4)/2 + cos(pi/18) + cos(pi/36) + cos(pi/45) + cos(pi/72) + cos(pi/90) + cos(pi/180) + cos(pi/360) + cos(2*pi/45) + cos(4*pi/45) + cos(5*pi/72) + cos(7*pi/72) + cos(7*pi/90) + cos(7*pi/180) + cos(7*pi/360) + cos(11*pi/180) + cos(11*pi/360) + cos(13*pi/180) + cos(13*pi/360) + cos(17*pi/180) + cos(17*pi/360) + cos(19*pi/360) + cos(23*pi/360) + cos(29*pi/360) + cos(31*pi/360)
Respuesta numérica [src]
35.3860426853672707226239102462
35.3860426853672707226239102462
Gráfico
Suma de la serie cos(n°)

    Ejemplos de hallazgo de la suma de la serie