document.write( "Question 317449: simplify the following, where k is any integer cos(2kpi-theta)(-sin(2kpi-theta)) \n" ); document.write( "
Algebra.Com's Answer #227307 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
cos(2kpi-theta)(-sin(2kpi-theta))
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\n" ); document.write( "= cos(-x)*(-sin(-x)
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\n" ); document.write( "= cos(x)*(sin(x)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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