Найду корень уравнения: tan^2(x)=0
a*w^2 + b*w + c = 0
D = b^2 - 4 * a * c =
(0)^2 - 4 * (1) * (0) = 0
w = -b/2a = -0/2/(1)
x1 = -81.6814090388783
x2 = -100.530964462409
x3 = 6.28318528408307
x4 = -65.973445764663
x5 = 53.4070756504516
x6 = 9.42477847373977
x7 = 37.6991120687848
x8 = 0.0
x9 = -69.1150388967924
x10 = -75.3982239115218
x11 = 100.530964739312
x12 = 75.3982242393431
x13 = -34.5575187016351
x14 = 3.14159153945546
x15 = -56.5486672888531
x16 = 62.8318526257023
x17 = 31.4159270619219
x18 = 28.2743338651162
x19 = 59.690260650792
x20 = 59.6902602145004
x21 = -31.4159267482748
x22 = 50.2654824463153
x23 = -97.3893724932976
x24 = -91.1061874849821
x25 = -72.2566308398808
x26 = 69.1150373568381
x27 = 12.5663704145927
x28 = -78.5398158757739
x29 = -43.9822971744223
x30 = -28.274333676669
x31 = -94.2477794213743
x32 = 15.7079634868755
x33 = -21.9911485864129
x34 = -59.6902604582742
x35 = -25.1327417214108
x36 = 56.5486675771117
x37 = -62.8318519640761
x38 = 78.53981615825
x39 = 40.8407040393519
x40 = 94.2477796093519
x41 = -6.28318509494079
x42 = 81.681409232902
x43 = -50.265482258314
x44 = 97.389372828611
x45 = 21.9911485852339
x46 = -47.1238903089396
x47 = -9.42477816679559
x48 = 87.9645943363399
x49 = 84.8230012117849
x50 = 18.8495554527235
x51 = -37.6991118775909
x52 = 25.1327401464195
x53 = -53.4070753298489
x54 = -15.7079632968116
x55 = -3.14159313419367
x56 = 72.2566310277136
x57 = 65.9734457532278
x58 = -84.8230005709274
x59 = 43.9822971695754
x60 = 34.5575189958939
x61 = -12.5663701141083
x62 = 47.1238887521935
x63 = 91.1061859604104
x64 = -87.9645943581507