SOLUTION: Could you solve this? The question says, "Find solutions between [0,2PI)" This is the problem is 4sin^2(theta)+7sin(theta)=2 thanks!!

Question 769265: Could you solve this?
The question says, "Find solutions between [0,2PI)"
This is the problem is
4sin^2(theta)+7sin(theta)=2
thanks!!
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Find solutions between [0,2PI)"
4sin^2(theta)+7sin(theta)=2
4sin^2x+7sinx-2=0
use quadratic formula to solve for sinx

a=4, b=7, c=-2
ans:
sinx=-2 (reject, -1 < sinx < 1)
or
sinx=0.25
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