Найду корень уравнения: sin2x+1=0
Перенесём 1 в правую часть ур-ния
с изменением знака при 1
-pi x1 = ---- 4
3*pi x2 = ---- 4
сумма
pi 3*pi 0 - -- + ---- 4 4
=
pi -- 2
произведение
-pi 3*pi 1*----*---- 4 4
=
2 -3*pi ------ 16
x1 = -44.7676954314418
x2 = 49.4800845342934
x3 = 36.9137134309271
x4 = -82.4668069282144
x5 = 62.0464548195549
x6 = -19.6349541554673
x7 = -44.7676950635734
x8 = 27.4889359573966
x9 = 62.0464547256144
x10 = -85.608399894653
x11 = -7.06858355298869
x12 = 43.1968988259316
x13 = -38.4845103583538
x14 = -63.6172513149926
x15 = 2.35619442440536
x16 = 46.3384915843947
x17 = -91.8915845717239
x18 = 80.8960105951638
x19 = -95.0331777492301
x20 = -76.1836217239439
x21 = 87.1791959595656
x22 = -51.0508806461775
x23 = -22.7765468685351
x24 = -29.0597322955756
x25 = -88.7499922112266
x26 = 21.2057502602382
x27 = -0.785397916651749
x28 = -10.2101759860574
x29 = -60.4756583509459
x30 = 71.471233111112
x31 = 55.7632697006301
x32 = -38.4845097737495
x33 = -54.1924731445711
x34 = 30.6305281863893
x35 = -13.3517689698773
x36 = -95.0331780209134
x37 = 36.9137135281996
x38 = 93.462381687851
x39 = -3.92699107594367
x40 = 80.896010582516
x41 = -66.758843637313
x42 = 77.7544183301131
x43 = 65.1880478021829
x44 = -29.0597320982225
x45 = -73.0420291965934
x46 = -88.7499925537801
x47 = -98.1747703033985
x48 = 96.6039739212089
x49 = 55.7632697511726
x50 = 33.7721211721652
x51 = 68.3296401645238
x52 = -16.4933611966261
x53 = 52.6216767646073
x54 = -32.2013245652766
x55 = 14.9225648553046
x56 = 8.63937960822746
x57 = -51.0508808708243
x58 = 99.7455669089878
x59 = -60.4756585174615
x60 = -41.6261027352652
x61 = 90.3207887447523
x62 = 65.1880473923958
x63 = -7.0685837201977
x64 = 84.0376034199549
x65 = -76.1836225361187
x66 = 43.1968992294597
x67 = 58.9048620635881
x68 = -0.785398304611266
x69 = -35.3429178934093
x70 = 40.0553062099627
x71 = 58.9048620066655
x72 = -22.7765464900166
x73 = 11.7809725930891
x74 = 18.0641575837788
x75 = 5.49778738042301
x76 = 24.3473430043575
x77 = -57.3340661259123
x78 = -73.0420294459387
x79 = 21.2057506565108
x80 = -79.3252147038408
x81 = 96.6039739773235
x82 = -96953.4762811305
x83 = 87.1791963746667
x84 = -35.3429175479242
x85 = -66.7588439932285
x86 = 74.6128253428807
x87 = -101.316363786262
x88 = 14.9225649892472