document.write( "Question 451560: How to use Sum Difference identities to fin the exact value: \r
\n" ); document.write( "\n" ); document.write( "Cos 53 degrees cos 82 degrees - sin 53 degrees sin 82 degrees ? Thank you! \n" ); document.write( "

Algebra.Com's Answer #310502 by robertb(5830) $\"\"$ $\"About$

You can put this solution on YOUR website!
Cos(53 + 82) = cos 135 = $\"-sqrt%282%29%2F2\"$ \n" ); document.write( "

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