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