Найду корень уравнения: tan(x)=-7
сумма
0 - atan(7)
=
-atan(7)
произведение
1*-atan(7)
=
-atan(7)
x1 = 73.9693244139643
x2 = -79.9687156119356
x3 = -57.977567036807
x4 = 51.9781758388358
x5 = -13.9952698865499
x6 = -35.9864184616785
x7 = -51.6943817296274
x8 = -29.7032331544989
x9 = -54.8359743832172
x10 = 7.99587868857865
x11 = -73.685530304756
x12 = 58.2613611460153
x13 = -95.6766788798845
x14 = 29.9870272637072
x15 = -70.5439376511662
x16 = 36.2702125708868
x17 = 14.2790639957582
x18 = -7.71208457937032
x19 = 80.2525097211439
x20 = 95.9604729890929
x21 = 45.6949905316562