# another trig equation

Printable View

• February 11th 2011, 06:27 AM
kassums17
another trig equation
2sin squared thaata + 3cos thaata - 3 = 0

solve the equation please!
• February 11th 2011, 06:45 AM
Ackbeet
Assuming you mean

$2\sin^{2}(\theta)+3\cos(\theta)-3=0,$

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?