Asked by Tom

Use the power-reducing formulas to rewrite the expression in terms of the first power of the cosine.

[#1.] (sin^4x)(cos^4x)

[#2.] (sin^4x)(cos^2x)

Answers

Answered by Damon
(1-cos^2)(1-cos^2) (cos cos cos cos)
(1-cos)(1+cos)(1-cos)(1+cos)(cos)(cos)(cos)(cos)

the next one follows
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