Найду корень уравнения: √2 cos - 1 = 0
Перенесём -1 в правую часть ур-ния
с изменением знака при -1
Разделим обе части ур-ния на sqrt(2)
pi x1 = -- 4
7*pi x2 = ---- 4
x1 = -19.6349540849362
x2 = 44.7676953136546
x3 = 62.0464549083984
x4 = -0.785398163397448
x5 = -68.329640215578
x6 = -11.7809724509617
x7 = -162.577419823272
x8 = -101.316363078271
x9 = 9111.4040935738
x10 = -69.9004365423729
x11 = 57.3340659280137
x12 = 76.1836218495525
x13 = -13.3517687777566
x14 = 80.8960108299372
x15 = -99.7455667514759
x16 = 55.7632696012188
x17 = -93.4623814442964
x18 = 30.6305283725005
x19 = -87.1791961371168
x20 = -5.49778714378214
x21 = -76.1836218495525
x22 = 36.9137136796801
x23 = -57.3340659280137
x24 = 51.0508806208341
x25 = 24.3473430653209
x26 = -51.0508806208341
x27 = -95.0331777710912
x28 = 87.1791961371168
x29 = -55.7632696012188
x30 = -30.6305283725005
x31 = 88.7499924639117
x32 = 7.06858347057703
x33 = 74.6128255227576
x34 = -351.072979038659
x35 = 49680.3608257056
x36 = -38.484510006475
x37 = -80.8960108299372
x38 = 99.7455667514759
x39 = 93.4623814442964
x40 = -24.3473430653209
x41 = -82.4668071567321
x42 = -32.2013246992954
x43 = -7.06858347057703
x44 = -49.4800842940392
x45 = 32.2013246992954
x46 = 82.4668071567321
x47 = -182.997772071605
x48 = 11.7809724509617
x49 = -25.9181393921158
x50 = -63.6172512351933
x51 = 5.49778714378214
x52 = -74.6128255227576
x53 = 38.484510006475
x54 = -43.1968989868597
x55 = -62.0464549083984
x56 = -44.7676953136546
x57 = 25.9181393921158
x58 = 13.3517687777566
x59 = -36.9137136796801
x60 = 69.9004365423729
x61 = 63.6172512351933
x62 = 19.6349540849362
x63 = 18.0641577581413
x64 = 0.785398163397448
x65 = 95.0331777710912
x66 = 43.1968989868597
x67 = -88.7499924639117
x68 = 68.329640215578
x69 = 49.4800842940392
x70 = -18.0641577581413