document.write( "Question 413883: \"simplify the expression by using a double angle formula or a half angle formula
\n" ); document.write( "2 sin 18% cos 18%\"\r
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Algebra.Com's Answer #290344 by jjordan95(63)\"\" \"About 
You can put this solution on YOUR website!
No steps to show here, this is simply an identity. I will not bore you with the proof.
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\n" ); document.write( "\"2sin%28x%29cos%28x%29\" = \"highlight%28sin%282x%29%29\"
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