# Math Help - another trig equation

1. ## another trig equation

2sin squared thaata + 3cos thaata - 3 = 0

$2\sin^{2}(\theta)+3\cos(\theta)-3=0,$
I would use $\sin^{2}(\theta)+\cos^{2}(\theta)=1$ to change the first term into cosines, and then use the quadratic formula. What does that give you?