# Math Help - how can i solve this trig question?

1. ## how can i solve this trig question?

solve 11sin^2 y =13-3sin^2 y for y, where y is greater then 0 degrees but less than 360. how many angle satify this equation?

2. You can perceive this as a quadratic equation $11 z^2 = 13 - 3 z^2$ where $z = sin(y)$, solve this eqn. (You'll get two answers), and solve for y for each answer.

3. ## thanks

thanks so much for the help
i am doing moduals and there is no other way to get this much help