Question

ПОМОГИТЕ СРОЧНО ПОЖАЛУЙСТА

Answer 1

1) ctg3x = -$\frac{\sqrt{3} }{3}$

3x = (π-π/3) + πk

3x = 2π/3 + πk

x = 2π/9 +πk/3

2) ctg(x/2) = $\sqrt{3}$

x/2 = π/6 + πk

x = π/3 + 2πk

3) $\sqrt{3}$ctg4x -1 = 0

$\sqrt{3}$ctg4x = 1

ctg4x = 1/$\sqrt{3}$

ctg4x = $\frac{\sqrt{3} }{3}$

4x = π/3 +πk

x = π/12 + πk/4

4) ctgx+3 = 0

ctgx = -3

x = -arcctg(3)+πk

5) ctg3x+1 = 0

ctg3x = -1

3x = (π-π/4) + πk

3x = 3π/4 + πk

x = π/4 + πk/3