tan(x)=-1/2

$$tan{left (x right )} = – frac{1}{2}$$

Дано уравнение
$$tan{left (x right )} = – frac{1}{2}$$
– это простейшее тригонометрическое ур-ние
Это ур-ние преобразуется в
$$x = pi n + {atan}{left (- frac{1}{2} right )}$$
Или
$$x = pi n – {atan}{left (frac{1}{2} right )}$$
, где n – любое целое число

$$x_{1} = – {atan}{left (frac{1}{2} right )}$$

x1 = -91.5698345631000

x2 = -60.1539080272000

x3 = -63.2955006808000

x4 = -22.4547961841000

x5 = -69.5786859880000

x6 = -50.7291300664000

x7 = -82.1450566023000

x8 = 56.0850201556000

x9 = 96.9257246523000

x10 = 62.3682054628000

x11 = -3.60524026259000

x12 = 71.7929834236000

x13 = -100.994612524000

x14 = 100.067317306000

x15 = 65.5097981164000

x16 = -72.7202786416000

x17 = 59.2266128092000

x18 = -25.5963888377000

x19 = -35.0211667985000

x20 = -41.3043521057000

x21 = 37.2354642341000

x22 = 52.9434275020000

x23 = 34.0938715805000

x24 = 24.6690936197000

x25 = -13.0300182234000

x26 = -97.8530198703000

x27 = -88.4282419095000

x28 = -6.74683291618000

x29 = 2.67794504459000

x30 = -0.463647609001000

x31 = 30.9522789269000

x32 = -38.1627594521000

x33 = 84.3593540379000

x34 = 49.8018348484000

x35 = -16.1716108769000

x36 = -75.8618712952000

x37 = 46.6602421948000

x38 = -79.0034639487000

x39 = 8.96113035177000

x40 = -9.88842556977000

x41 = 40.3770568877000

x42 = 93.7841319987000

x43 = 68.6513907700000

x44 = -53.8707227200000

x45 = 78.0761687307000

x46 = -19.3132035305000

x47 = -66.4370933344000

x48 = 81.2177613843000

x49 = 5.81953769818000

x50 = 43.5186495413000

x51 = -31.8795741449000

x52 = 12.1027230054000

x53 = 18.3859083125000

x54 = 21.5275009661000

x55 = 15.2443156589000

x56 = -94.7114272167000

x57 = -47.5875374128000

x58 = 90.6425393451000

x59 = -44.4459447593000

x60 = 27.8106862733000

x61 = -28.7379814913000

x62 = -57.0123153736000

x63 = 87.5009466915000

x64 = 74.9345760772000

x65 = -85.2866492559000