Найду корень уравнения: tgx=-3,5
сумма
0 - atan(7/2)
=
-atan(7/2)
произведение
1*-atan(7/2)
=
-atan(7/2)
x1 = 42.6898004824673
x2 = 99.2384682470836
x3 = -42.1332011644571
x4 = -29.5668305500979
x5 = -98.6818689290734
x6 = 86.6720976327244
x7 = -7.57568197496937
x8 = 23.8402445609286
x9 = 36.4066151752877
x10 = -79.8323130075346
x11 = 8.1322812929796
x12 = -20.1420525893285
x13 = -64.1243497395857
x14 = -35.8500158572775
x15 = 1.84909598580001
x16 = -57.8411644324061
x17 = 83.5305049791346
x18 = 58.3977637504163
x19 = 48.9729857896469
x20 = -48.4163864716367
x21 = -73.549127700355
x22 = 74.1057270183653
x23 = -51.5579791252265
x24 = 96.0968755934938
x25 = -13.858867282149
x26 = 14.4154666001592
x27 = 52.1145784432367
x28 = -54.6995717788163
x29 = 30.1234298681081
x30 = 80.3889123255448
x31 = -86.1154983147142