document.write( "Question 604751: Simplify 4sin^2x + 4cos^2x \n" ); document.write( "

Algebra.Com's Answer #381400 by alicealc(293) $\"\"$ $\"About$

You can put this solution on YOUR website!
use the identity formula:
\n" ); document.write( " $\"sin%5E2%28x%29+%2B+cos%5E2%28x%29=1\"$
\n" ); document.write( "so,
\n" ); document.write( " $\"4%2Asin%5E2%28x%29+%2B+4%2Acos%5E2%28x%29\"$
\n" ); document.write( "= $\"4%2A%28sin%5E2%28x%29+%2B+cos%5E2%28x%29%29\"$
\n" ); document.write( "=4*1 = 4
\n" ); document.write( " \n" ); document.write( "

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