Найду корень уравнения: tan(x)=-2,5
сумма
0 - atan(5/2)
=
-atan(5/2)
произведение
1*-atan(5/2)
=
-atan(5/2)
x1 = -82.8716989430172
x2 = 155.889342729807
x3 = -20.0398458712213
x4 = -51.4557724071192
x5 = 45.9335998541644
x6 = 27.0840439326256
x7 = 86.7743043508317
x8 = 96.1990823116011
x9 = -114.287625478915
x10 = 77.3495263900623
x11 = -42.0309944463498
x12 = 89.9158970044215
x13 = 80.4911190436521
x14 = 36.508821893395
x15 = 74.2079337364725
x16 = -1.19028994968253
x17 = 83.6327116972419
x18 = -340.48229653738
x19 = -7.47347525686212
x20 = -98.5796622109661
x21 = -10.6150679104519
x22 = -35.7478091391703
x23 = -57.7389577142988
x24 = 23.9424512790358
x25 = -79.7301062894274
x26 = 30.2256365862154
x27 = -45.1725870999396
x28 = 441.774274206478
x29 = -86.0132915966069
x30 = -29.4646238319907
x31 = 8.23448801108685
x32 = -70.305328328658
x33 = 102.482267618781
x34 = -117.429218132505
x35 = -4.33188260327232
x36 = -73.4469209822478
x37 = 67.9247484292929
x38 = -76.5885136358376
x39 = -155.128329975582
x40 = -64.0221430214784
x41 = -13.7566605640417
x42 = 259.56190029827
x43 = -151.986737321993
x44 = -26.3230311784009
x45 = 61.6415631221133
x46 = 1.95130270390726
x47 = 52.216785161344
x48 = 14.5176733182664
x49 = 58.4999704685235