SOLUTION: cos sq 4 theta -sin sq 4 theta = -1

SOLUTION: cos sq 4 theta -sin sq 4 theta = -1

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Question 1103102: cos sq 4 theta -sin sq 4 theta = -1
Answer by greenestamps(13216) (Show Source): You can put this solution on YOUR website!

cos^2(x)-sin^2(x) is the formula for cos(2x). So your equation

is equivalent to

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