Найду корень уравнения: √2*cos((pi/4)-x)+1=0
Перенесём 1 в правую часть ур-ния
с изменением знака при 1
Разделим обе части ур-ния на sqrt(2)
сумма
pi 0 - -- + pi 2
=
pi -- 2
произведение
-pi 1*----*pi 2
=
2 -pi ----- 2
x1 = 34.5575191894877
x2 = -45.553093477052
x3 = 72.2566310325652
x4 = 47.1238898038469
x5 = -47.1238898038469
x6 = -97.3893722612836
x7 = -72.2566310325652
x8 = 10.9955742875643
x9 = -9.42477796076938
x10 = 86.3937979737193
x11 = 48.6946861306418
x12 = -1.5707963267949
x13 = -32.9867228626928
x14 = 73.8274273593601
x15 = 54.9778714378214
x16 = 23.5619449019235
x17 = 61.261056745001
x18 = 28.2743338823081
x19 = -14.1371669411541
x20 = -95.8185759344887
x21 = -34.5575191894877
x22 = 53.4070751110265
x23 = 17.2787595947439
x24 = 80.1106126665397
x25 = 21.9911485751286
x26 = -89.5353906273091
x27 = -15.707963267949
x28 = -59.6902604182061
x29 = 9.42477796076938
x30 = 78.5398163397448
x31 = 29.845130209103
x32 = 36.1283155162826
x33 = -51.8362787842316
x34 = 4.71238898038469
x35 = -7.85398163397448
x36 = -53.4070751110265
x37 = -28.2743338823081
x38 = -4871.03940939097
x39 = -196.349540849362
x40 = -65.9734457253857
x41 = 65.9734457253857
x42 = -70.6858347057703
x43 = -26.7035375555132
x44 = 91.106186954104
x45 = -91.106186954104
x46 = -76.9690200129499
x47 = 40.8407044966673
x48 = -40.8407044966673
x49 = -21.9911485751286
x50 = -64.4026493985908
x51 = 97.3893722612836
x52 = 15.707963267949
x53 = -3.14159265358979
x54 = 3.14159265358979
x55 = 42.4115008234622
x56 = 84.8230016469244
x57 = -39.2699081698724
x58 = 98.9601685880785
x59 = -20.4203522483337
x60 = 59.6902604182061
x61 = -84.8230016469244
x62 = -78.5398163397448
x63 = 67.5442420521806
x64 = 92.6769832808989
x65 = -58.1194640914112
x66 = -83.2522053201295