SOLUTION: Exact values. 2-2 cos^2x=-3sin x-1

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Question 1008640: Exact values. 2-2 cos^2x=-3sin x-1
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!


Add 1 to both sides:



Use the identity  solved for cos2(q)







Get 0 on the right side



Factor the left side as a quadratic in sin(x)



Use the zero-factor property:

;   

;    

;     

;   

These are the solutions for .
To get all solutions add  to them.

Edwin
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