document.write( "Question 729971: Simplify each expression. Evaluate the resulting expression, if possible. \r
\n" ); document.write( "\n" ); document.write( "tan(4x)/(1-tan^2(4x))\r
\n" ); document.write( "\n" ); document.write( "I know the solution is tan(8x)/2 --except I have no idea how to get there. Thanks so much!
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Algebra.Com's Answer #446375 by lynnlo(4176)\"\" \"About 
You can put this solution on YOUR website!
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