Question

Solve the equation on the interval 0 ≤ θ < 2π.

Answer 1

Step 1:

The equation is on the interval .

Using formula .

Step 2:

then, general solution of sine function is , where is any integer.

Take .

Take .

Take .

The solutions required on the interval .

Hence are not considered.

The solutions of equation are .

Solution:

The solutions of equation are .