Найду корень уравнения: cos(z)=0
с изменением знака при 0
pi z1 = -- 2
3*pi z2 = ---- 2
сумма
pi 3*pi 0 + -- + ---- 2 2
=
2*pi
произведение
pi 3*pi 1*--*---- 2 2
=
2 3*pi ----- 4
z1 = 89.5353906273091
z2 = -45.553093477052
z3 = -29.845130209103
z4 = -83.2522053201295
z5 = -387.986692718339
z6 = 64.4026493985908
z7 = 7.85398163397448
z8 = 36.1283155162826
z9 = 86.3937979737193
z10 = 42.4115008234622
z11 = -20.4203522483337
z12 = -48.6946861306418
z13 = -32.9867228626928
z14 = 17.2787595947439
z15 = -26.7035375555132
z16 = 58.1194640914112
z17 = 32.9867228626928
z18 = -39.2699081698724
z19 = 98.9601685880785
z20 = -89.5353906273091
z21 = 29.845130209103
z22 = -54.9778714378214
z23 = 1.5707963267949
z24 = -10.9955742875643
z25 = -92.6769832808989
z26 = 70.6858347057703
z27 = 10.9955742875643
z28 = 45.553093477052
z29 = -73.8274273593601
z30 = -36.1283155162826
z31 = 61.261056745001
z32 = -14.1371669411541
z33 = 76.9690200129499
z34 = -168.075206967054
z35 = 26.7035375555132
z36 = 92.6769832808989
z37 = 83.2522053201295
z38 = 73.8274273593601
z39 = -86.3937979737193
z40 = -2266.65909956504
z41 = 14.1371669411541
z42 = 20.4203522483337
z43 = -80.1106126665397
z44 = 23.5619449019235
z45 = -61.261056745001
z46 = -64.4026493985908
z47 = -51.8362787842316
z48 = 39.2699081698724
z49 = -4.71238898038469
z50 = -98.9601685880785
z51 = -58.1194640914112
z52 = -95.8185759344887
z53 = 4.71238898038469
z54 = 48.6946861306418
z55 = -7.85398163397448
z56 = -67.5442420521806
z57 = -76.9690200129499
z58 = -17.2787595947439
z59 = -1.5707963267949
z60 = 51.8362787842316
z61 = -70.6858347057703
z62 = -23.5619449019235
z63 = 67.5442420521806
z64 = 54.9778714378214
z65 = 95.8185759344887
z66 = 80.1106126665397
z67 = -42.4115008234622