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

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


   

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(20064) About Me  (Show Source):
You can put this solution on YOUR website!

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Then we use matrix%281%2C3%2Ccos%282theta%29%2C%22%22=%22%22%2C1-2sin%5E2%28theta%29%29 to get matrix%281%2C3%2C2sin%5E2%28theta%29%2C%22%22=%22%22%2C1-cos%282theta%29%29, and
matrix%281%2C3%2Ccos%282theta%29%2C%22%22=%22%22%2C2cos%5E2%28theta%29-1%29%29 to get matrix%281%2C3%2C2cos%5E2%28theta%29%2C%22%22=%22%22%2C1%2Bcos%282theta%29%29
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Edwin