Найду корень уравнения: cos(а)=(1/2)
pi a1 = -- 3
5*pi a2 = ---- 3
сумма
pi 5*pi 0 + -- + ---- 3 3
=
2*pi
произведение
pi 5*pi 1*--*---- 3 3
=
2 5*pi ----- 9
a1 = -51.3126800086333
a2 = 5.23598775598299
a3 = 76.4454212373516
a4 = -70.162235930172
a5 = -57.5958653158129
a6 = -38.7463093942741
a7 = -1.0471975511966
a8 = 74.3510261349584
a9 = 82.7286065445312
a10 = -80.634211442138
a11 = 63.8790506229925
a12 = 1.0471975511966
a13 = -11.5191730631626
a14 = -55.5014702134197
a15 = -89.0117918517108
a16 = 32.4631240870945
a17 = -86.9173967493176
a18 = 7.33038285837618
a19 = 24.0855436775217
a20 = -7.33038285837618
a21 = 38.7463093942741
a22 = 51.3126800086333
a23 = -26.1799387799149
a24 = 95.2949771588904
a25 = -13.6135681655558
a26 = -17.8023583703422
a27 = 57.5958653158129
a28 = 19.8967534727354
a29 = -68.0678408277789
a30 = 13.6135681655558
a31 = 93.2005820564972
a32 = 61.7846555205993
a33 = -36.6519142918809
a34 = -42.9350995990605
a35 = -61.7846555205993
a36 = -359.188760060433
a37 = 17.8023583703422
a38 = -82.7286065445312
a39 = -95.2949771588904
a40 = -99.4837673636768
a41 = 42.9350995990605
a42 = 26.1799387799149
a43 = -19.8967534727354
a44 = -49.2182849062401
a45 = 30.3687289847013
a46 = 55.5014702134197
a47 = -5.23598775598299
a48 = 11.5191730631626
a49 = -93.2005820564972
a50 = -76.4454212373516
a51 = -32.4631240870945
a52 = 36.6519142918809
a53 = 89.0117918517108
a54 = -74.3510261349584
a55 = 68.0678408277789
a56 = -225.147473507269
a57 = 45.0294947014537
a58 = -45.0294947014537
a59 = 86.9173967493176
a60 = -63.8790506229925
a61 = 70.162235930172
a62 = -30.3687289847013
a63 = 49.2182849062401
a64 = -24.0855436775217
a65 = 99.4837673636768
a66 = 80.634211442138
a67 = 1651.43053823704