Решите уравнение 4sinx+3cosx=0

Question

Решите уравнение 4sinx+3cosx=0

Answer 1

4sinx + 3cosx = 0 | : cosx
cosx ne = 0
x ne = pi/2 + pin, n E Z
4tgx + 3 = 0
4tgx = -3
tgx = -3/4
x = - arctg 3/4 + pin, n E Z