document.write( "Question 381912: true or false: sin(-85)=-sin85 \n" ); document.write( "
Algebra.Com's Answer #270814 by stanbon(75887)\"\" \"About 
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true or false: sin(-85)=-sin85
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\n" ); document.write( "That is a common know identity: sin(-x) = -sin(x)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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