Найду корень уравнения: cos(a)=-3/5
a1 = -acos(-3/5) + 2*pi
a2 = acos(-3/5)
сумма
0 + -acos(-3/5) + 2*pi + acos(-3/5)
=
2*pi
произведение
1*(-acos(-3/5) + 2*pi)*acos(-3/5)
=
(-acos(-3/5) + 2*pi)*acos(-3/5)
a1 = -52.4797798930249
a2 = 35.4848144074893
a3 = -54.3343703290281
a4 = -73.1839262505669
a5 = -60.6175556362077
a6 = 33.6302239714861
a7 = -22.9184437931302
a8 = 71.3293358145636
a9 = -83.8957064289228
a10 = 54.3343703290281
a11 = -71.3293358145636
a12 = 85.750296864926
a13 = 14.7806680499474
a14 = -92.0334821721056
a15 = 58.7629652002045
a16 = -2.21429743558818
a17 = 52.4797798930249
a18 = -29.2016291003098
a19 = 48.0511850218485
a20 = -8.49748274276777
a21 = 8.49748274276777
a22 = -46.1965945858453
a23 = -79.4671115577464
a24 = 10.352073178771
a25 = -27.3470386643065
a26 = -16.6352584859506
a27 = 39.9134092786657
a28 = 96.462077043282
a29 = -33.6302239714861
a30 = 83.8957064289228
a31 = -58.7629652002045
a32 = 66.9007409433873
a33 = 79.4671115577464
a34 = 92.0334821721056
a35 = -96.462077043282
a36 = -85.750296864926
a37 = -21.0638533571269
a38 = 65.046150507384
a39 = -39.9134092786657
a40 = -41.7679997146689
a41 = -10.352073178771
a42 = 27.3470386643065
a43 = 90.1788917361024
a44 = 4.06888787159141
a45 = 22.9184437931302
a46 = -98.3166674792852
a47 = -77.6125211217432
a48 = 21.0638533571269
a49 = -65.046150507384
a50 = 73.1839262505669
a51 = 98.3166674792852
a52 = -90.1788917361024
a53 = 41.7679997146689
a54 = 77.6125211217432
a55 = -35.4848144074893
a56 = -48.0511850218485
a57 = 60.6175556362077
a58 = 29.2016291003098
a59 = -8679.2932066506
a60 = 2.21429743558818
a61 = 46.1965945858453
a62 = -14.7806680499474
a63 = -66.9007409433873
a64 = -4.06888787159141
a65 = 16.6352584859506