2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
cos(3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3) cos (3)
1 + ------ + ------- + ------- + ------- + ------- + ------- + ------- + ------- + ------- + -------- + -------- + -------- + -------- + -------- + -------- + -------- + -------- + -------- + -------- + --------
3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41
$$\frac{\cos{\left(3 \right)}}{3} + \frac{\cos^{3}{\left(3 \right)}}{7} + \frac{\cos^{5}{\left(3 \right)}}{11} + \frac{\cos^{7}{\left(3 \right)}}{15} + \frac{\cos^{9}{\left(3 \right)}}{19} + \frac{\cos^{11}{\left(3 \right)}}{23} + \frac{\cos^{13}{\left(3 \right)}}{27} + \frac{\cos^{15}{\left(3 \right)}}{31} + \frac{\cos^{17}{\left(3 \right)}}{35} + \frac{\cos^{19}{\left(3 \right)}}{39} + \frac{\cos^{20}{\left(3 \right)}}{41} + \frac{\cos^{18}{\left(3 \right)}}{37} + \frac{\cos^{16}{\left(3 \right)}}{33} + \frac{\cos^{14}{\left(3 \right)}}{29} + \frac{\cos^{12}{\left(3 \right)}}{25} + \frac{\cos^{10}{\left(3 \right)}}{21} + \frac{\cos^{8}{\left(3 \right)}}{17} + \frac{\cos^{6}{\left(3 \right)}}{13} + \frac{\cos^{4}{\left(3 \right)}}{9} + \frac{\cos^{2}{\left(3 \right)}}{5} + 1$$
1 + cos(3)/3 + cos(3)^2/5 + cos(3)^3/7 + cos(3)^4/9 + cos(3)^5/11 + cos(3)^6/13 + cos(3)^7/15 + cos(3)^8/17 + cos(3)^9/19 + cos(3)^10/21 + cos(3)^11/23 + cos(3)^12/25 + cos(3)^13/27 + cos(3)^14/29 + cos(3)^15/31 + cos(3)^16/33 + cos(3)^17/35 + cos(3)^18/37 + cos(3)^19/39 + cos(3)^20/41