hard!!!please

Question

Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.)

sin θ + 1 = 0

θ =

 

           rad

Answer 1

The trigonometric equation is .

Rewrite the equation .

General solution :

If , then , where is an integer.

The general solution is .