Найду корень уравнения: √2*cos(x)+1=0
Перенесём 1 в правую часть ур-ния
с изменением знака при 1
Разделим обе части ур-ния на sqrt(2)
3*pi x1 = ---- 4
5*pi x2 = ---- 4
сумма
3*pi 5*pi 0 + ---- + ---- 4 4
=
2*pi
произведение
3*pi 5*pi 1*----*---- 4 4
=
2 15*pi ------ 16
x1 = 65.1880475619882
x2 = 2.35619449019234
x3 = -10.2101761241668
x4 = 40.0553063332699
x5 = -90.3207887907066
x6 = 2341.27192508779
x7 = -16.4933614313464
x8 = -33.7721210260903
x9 = 90.3207887907066
x10 = 35.3429173528852
x11 = -71.4712328691678
x12 = 96.6039740978861
x13 = 73.0420291959627
x14 = -14.9225651045515
x15 = -91.8915851175014
x16 = 98.174770424681
x17 = -8.63937979737193
x18 = -335.36501577071
x19 = 21.2057504117311
x20 = 47.9092879672443
x21 = -46.3384916404494
x22 = 255.254403104171
x23 = -35.3429173528852
x24 = 77.7544181763474
x25 = -54.1924732744239
x26 = 52.621676947629
x27 = -29.0597320457056
x28 = -21.2057504117311
x29 = 79.3252145031423
x30 = 29.0597320457056
x31 = 33.7721210260903
x32 = -77.7544181763474
x33 = 8.63937979737193
x34 = -27.4889357189107
x35 = -84.037603483527
x36 = 85.6083998103219
x37 = -96.6039740978861
x38 = -60.4756585816035
x39 = 10.2101761241668
x40 = 104.457955731861
x41 = -85.6083998103219
x42 = 14.9225651045515
x43 = 60.4756585816035
x44 = 3.92699081698724
x45 = -73.0420291959627
x46 = -47.9092879672443
x47 = -52.621676947629
x48 = 84.037603483527
x49 = -58.9048622548086
x50 = 27.4889357189107
x51 = 22.776546738526
x52 = -98.174770424681
x53 = 16.4933614313464
x54 = -79.3252145031423
x55 = -41.6261026600648
x56 = -66.7588438887831
x57 = 41.6261026600648
x58 = 54.1924732744239
x59 = 71.4712328691678
x60 = -65.1880475619882
x61 = 39047.6404896309
x62 = 66.7588438887831
x63 = -3.92699081698724
x64 = -2.35619449019234
x65 = 46.3384916404494
x66 = 58.9048622548086
x67 = -22.776546738526
x68 = 91.8915851175014
x69 = -40.0553063332699