document.write( "Question 736851: Use a power reducing identity to rewrite the following expression below in terms containing only first powers of cosine. cos^2(x)sin^4(x) Please help me to understand this in the simplest way possible. \n" ); document.write( "

Algebra.Com's Answer #450026 by fcabanski(1391) $\"\"$ $\"About$

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cos^2(x) = (1+cos(2x))/2 and sin^2(x) = (1-cos(2x))/2. sin^4(x) = (sin^2(x))^2

\n" ); document.write( "cos^2(x)sin^4(x)= cos^2(x)*(sin^2(x))^2 = (1+cos(2x))/2 * ((1-cos(2x))/2)^2 \n" ); document.write( "

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