Question

Помогите пожалуйста срочно

Answer 1

1. 3ctgx = $\sqrt{3}$

ctgx = $\frac{\sqrt{3} }{3}$

x = $\frac{\pi }{3}$$+ \pi n,$ n ∈ Z
2.  sinx = -1
x = $-\frac{\pi }{2} + 2\pi n$, n ∈ Z
3. 2cosx + 1 = 0
2cosx = - 1
cosx = -$\frac{1}{2}$
x = $\frac{\pi }{3} + 2\pi n$, n ∈ Z
4. 2sin($x - \frac{\pi }{3}$) = - $\sqrt{3}$
sin($x - \frac{\pi }{3}$) = -$\sqrt{3}$/2
$x - \frac{\pi }{3}$ =  $\frac{4\pi }{3} + 2\pi n$, n ∈ Z
x = $\frac{5\pi }{3} + 2\pi n$, n ∈ Z