Sr Examen

Derivada de y=arcctg2x*cos2^x

Función f() - derivada -er orden en el punto
v

Gráfico:

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Definida a trozos:

Solución

Ha introducido [src]
             x   
acot(2*x)*cos (2)
$$\cos^{x}{\left(2 \right)} \operatorname{acot}{\left(2 x \right)}$$
acot(2*x)*cos(2)^x
Gráfica
Primera derivada [src]
       x                                             
  2*cos (2)      x                                   
- --------- + cos (2)*(pi*I + log(-cos(2)))*acot(2*x)
          2                                          
   1 + 4*x                                           
$$\left(\log{\left(- \cos{\left(2 \right)} \right)} + i \pi\right) \cos^{x}{\left(2 \right)} \operatorname{acot}{\left(2 x \right)} - \frac{2 \cos^{x}{\left(2 \right)}}{4 x^{2} + 1}$$
Segunda derivada [src]
   x    /                     2             4*(pi*I + log(-cos(2)))       16*x   \
cos (2)*|(pi*I + log(-cos(2))) *acot(2*x) - ----------------------- + -----------|
        |                                                  2                    2|
        |                                           1 + 4*x           /       2\ |
        \                                                             \1 + 4*x / /
$$\left(\frac{16 x}{\left(4 x^{2} + 1\right)^{2}} + \left(\log{\left(- \cos{\left(2 \right)} \right)} + i \pi\right)^{2} \operatorname{acot}{\left(2 x \right)} - \frac{4 \left(\log{\left(- \cos{\left(2 \right)} \right)} + i \pi\right)}{4 x^{2} + 1}\right) \cos^{x}{\left(2 \right)}$$
Tercera derivada [src]
        /                                      /          2  \                                                        \
        |                                      |      16*x   |                                                        |
        |                                   16*|-1 + --------|                                                        |
        |                                      |            2|                          2                             |
   x    |                     3                \     1 + 4*x /   6*(pi*I + log(-cos(2)))    48*x*(pi*I + log(-cos(2)))|
cos (2)*|(pi*I + log(-cos(2))) *acot(2*x) - ------------------ - ------------------------ + --------------------------|
        |                                                2                      2                            2        |
        |                                      /       2\                1 + 4*x                   /       2\         |
        \                                      \1 + 4*x /                                          \1 + 4*x /         /
$$\left(\frac{48 x \left(\log{\left(- \cos{\left(2 \right)} \right)} + i \pi\right)}{\left(4 x^{2} + 1\right)^{2}} + \left(\log{\left(- \cos{\left(2 \right)} \right)} + i \pi\right)^{3} \operatorname{acot}{\left(2 x \right)} - \frac{6 \left(\log{\left(- \cos{\left(2 \right)} \right)} + i \pi\right)^{2}}{4 x^{2} + 1} - \frac{16 \left(\frac{16 x^{2}}{4 x^{2} + 1} - 1\right)}{\left(4 x^{2} + 1\right)^{2}}\right) \cos^{x}{\left(2 \right)}$$
Gráfico
Derivada de y=arcctg2x*cos2^x