SOLUTION: Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles. tan^4(3x)

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Question 1175908: Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles.
tan^4(3x)
Answer by Edwin McCravy(20065)   (Show Source): You can put this solution on YOUR website!

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Then we use  to get , and
 to get 
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Edwin
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