Question

решите уравнения
a) sin x = -0.5
б) cos x = 1/3
в) tg x = - 3​

Answer 1

a)sin x = -0.5

x = (-1)ⁿ•(-π/6) + πn

x = (-1)^n+1 • π/6 + πn

б)cos x = 1/3

x = ±arccos(1/3)+2πk

в)tg x = -3

x = -arctg (3) + πn