Question

find all real numbers:
3sin^2x-sinx=0
HELP! I just basically need help knowing when i add/sub pi or 2pi

Answer 1

Step 1: To simplify the equation and make it ( ) ( ) = 0

(sinx)(3sinx-1) = 0
sin x = 0 and 3 sin x = 1
sin x = 0 and sin x = 1/3

solve for x for both equations, the answer will be the solutions of x which are common for both equations.

Answer 2

i lknow you take the inverse sin for both but then it tells me to sub tract the inverse of 1/3 from pi....and idk why