Найду корень уравнения: sin 2x = -1
-pi x1 = ---- 4
3*pi x2 = ---- 4
x1 = -29.0597322955756
x2 = -35.3429178934093
x3 = -95.0331780209134
x4 = 11.7809725930891
x5 = 65.1880478021829
x6 = 90.3207887447523
x7 = -66.758843637313
x8 = 14.9225649892472
x9 = 96.6039739212089
x10 = 33.7721211721652
x11 = -60.4756583509459
x12 = -22.7765468685351
x13 = -10.2101759860574
x14 = -73.0420294459387
x15 = 46.3384915843947
x16 = -38.4845103583538
x17 = -44.7676954314418
x18 = 96.6039739773235
x19 = -22.7765464900166
x20 = -35.3429175479242
x21 = -66.7588439932285
x22 = -96953.4762811305
x23 = -44.7676950635734
x24 = -85.608399894653
x25 = -0.785398304611266
x26 = 84.0376034199549
x27 = -54.1924731445711
x28 = -88.7499925537801
x29 = -7.06858355298869
x30 = 77.7544183301131
x31 = 43.1968992294597
x32 = 58.9048620635881
x33 = 87.1791959595656
x34 = 62.0464547256144
x35 = 55.7632697006301
x36 = 27.4889359573966
x37 = 80.8960105951638
x38 = -7.0685837201977
x39 = 52.6216767646073
x40 = 62.0464548195549
x41 = -3.92699107594367
x42 = 74.6128253428807
x43 = 87.1791963746667
x44 = 5.49778738042301
x45 = 49.4800845342934
x46 = -79.3252147038408
x47 = 36.9137134309271
x48 = 21.2057506565108
x49 = -63.6172513149926
x50 = -51.0508806461775
x51 = -51.0508808708243
x52 = -41.6261027352652
x53 = 8.63937960822746
x54 = 24.3473430043575
x55 = -38.4845097737495
x56 = 99.7455669089878
x57 = -60.4756585174615
x58 = 93.462381687851
x59 = 14.9225648553046
x60 = 2.35619442440536
x61 = -95.0331777492301
x62 = 68.3296401645238
x63 = -82.4668069282144
x64 = -88.7499922112266
x65 = -73.0420291965934
x66 = -19.6349541554673
x67 = -13.3517689698773
x68 = -0.785397916651749
x69 = -91.8915845717239
x70 = 80.896010582516
x71 = -32.2013245652766
x72 = -98.1747703033985
x73 = 40.0553062099627
x74 = -29.0597320982225
x75 = 18.0641575837788
x76 = -101.316363786262
x77 = 36.9137135281996
x78 = 65.1880473923958
x79 = 43.1968988259316
x80 = -76.1836217239439
x81 = -76.1836225361187
x82 = -16.4933611966261
x83 = 58.9048620066655
x84 = 71.471233111112
x85 = 21.2057502602382
x86 = 30.6305281863893
x87 = -57.3340661259123
x88 = 55.7632697511726