document.write( "Question 1163201: simplify the given equation
\n" ); document.write( "suppose that sin(a)=4/5 and sin(b)=1/2, where pi/2\n" ); document.write( "

Algebra.Com's Answer #787196 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Look it up on Wikipedia, \"Half angle formulas\" \n" ); document.write( "
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