Найду корень уравнения: cos(x/2)=0
с изменением знака при 0
сумма
0 + pi + 3*pi
=
4*pi
произведение
1*pi*3*pi
=
2 3*pi
x1 = -78.5398163397448
x2 = 97.3893722612836
x3 = -65.9734457253857
x4 = -9591.28237140964
x5 = 78.5398163397448
x6 = -3.14159265358979
x7 = -91.106186954104
x8 = 84.8230016469244
x9 = 72.2566310325652
x10 = 91.106186954104
x11 = -9.42477796076938
x12 = 28.2743338823081
x13 = -34.5575191894877
x14 = -59.6902604182061
x15 = -53.4070751110265
x16 = -21.9911485751286
x17 = -84.8230016469244
x18 = 3.14159265358979
x19 = 21.9911485751286
x20 = 65.9734457253857
x21 = 9.42477796076938
x22 = 40.8407044966673
x23 = 7517042.68028432
x24 = -28.2743338823081
x25 = 53.4070751110265
x26 = 47.1238898038469
x27 = -40.8407044966673
x28 = -97.3893722612836
x29 = 15.707963267949
x30 = 59.6902604182061
x31 = -15.707963267949
x32 = -72.2566310325652
x33 = 34.5575191894877
x34 = -47.1238898038469
x35 = -160.221225333079