document.write( "Question 1179609: Use the product-to-sum formulas to rewrite the product as a sum or difference.
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Algebra.Com's Answer #809174 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( " $\"sin%28alpha%29cos%28beta%29=%281%2F2%29%28sin%28alpha%2Bbeta%29%2Bsin%28alpha-beta%29%29\"$ ............... $\"alpha=4theta\"$ , $\"beta=2theta\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"sin%284theta%29cos%282theta%29=%281%2F2%29%28sin%286theta%29%2Bsin%282theta%29%29\"$ \n" ); document.write( "

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