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Реши любую задачу с помощью нейросети.
$$2 cos{left (x right )} + 1 = 0$$
– это простейшее тригонометрическое ур-ние
Перенесём 1 в правую часть ур-ния
с изменением знака при 1
Получим:
$$2 cos{left (x right )} = -1$$
Разделим обе части ур-ния на 2
Ур-ние превратится в
$$cos{left (x right )} = – frac{1}{2}$$
Это ур-ние преобразуется в
$$x = pi n + {acos}{left (- frac{1}{2} right )}$$
$$x = pi n – pi + {acos}{left (- frac{1}{2} right )}$$
Или
$$x = pi n + frac{2 pi}{3}$$
$$x = pi n – frac{pi}{3}$$
, где n – любое целое число
2*pi
x1 = —-
3
4*pi
x2 = —-
3
x1 = -67.0206432766000
x2 = 630.412925820000
x3 = -14.6607657168000
x4 = -1623.15620435000
x5 = -20.9439510239000
x6 = -16.7551608191000
x7 = 29.3215314335000
x8 = 98.4365698125000
x9 = -10.4719755120000
x10 = 71.2094334814000
x11 = -8.37758040957000
x12 = 48.1710873550000
x13 = 58.6430628670000
x14 = 416.784625376000
x15 = 10.4719755120000
x16 = 20.9439510239000
x17 = -29.3215314335000
x18 = 27.2271363311000
x19 = -60.7374579694000
x20 = 14.6607657168000
x21 = 23.0383461263000
x22 = -83.7758040957000
x23 = -41.8879020479000
x24 = -64.9262481742000
x25 = -71.2094334814000
x26 = 60.7374579694000
x27 = -77.4926187885000
x28 = 117.286125734000
x29 = 8.37758040957000
x30 = 92.1533845053000
x31 = 2.09439510239000
x32 = 35.6047167407000
x33 = -79.5870138909000
x34 = -85.8701991981000
x35 = 4.18879020479000
x36 = 67.0206432766000
x37 = 54.4542726622000
x38 = 46.0766922527000
x39 = -2.09439510239000
x40 = 41.8879020479000
x41 = -27.2271363311000
x42 = 90.0589894029000
x43 = -33.5103216383000
x44 = -52.3598775598000
x45 = 39.7935069455000
x46 = -73.3038285838000
x47 = -23.0383461263000
x48 = 77.4926187885000
x49 = -96.3421747101000
x50 = 73.3038285838000
x51 = -48.1710873550000
x52 = 64.9262481742000
x53 = -92.1533845053000
x54 = -46.0766922527000
x55 = -35.6047167407000
x56 = 79.5870138909000
x57 = 85.8701991981000
x58 = 96.3421747101000
x59 = -98.4365698125000
x60 = -39.7935069455000
x61 = -54.4542726622000
x62 = 83.7758040957000
x63 = 16.7551608191000
x64 = 33.5103216383000
x65 = -90.0589894029000
x66 = -58.6430628670000
x67 = -4.18879020479000
x68 = 52.3598775598000
