SOLUTION: if cos^2(3x)-sin^2(3x)= Cos(B), then B=?

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Question 632141: if cos^2(3x)-sin^2(3x)= Cos(B), then B=?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




John

My calculator said it, I believe it, that settles it
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