document.write( "Question 438443: Prove the given statement is an identity\r
\n" ); document.write( "\n" ); document.write( "sin^2x (1+ tan^2)x = tan^2 x\r
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Algebra.Com's Answer #303199 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
I think you mean
\n" ); document.write( "sin^2x (1+ tan^2(x)) = tan^2 x
\n" ); document.write( "sin^2 + sin^4/cos^2 = sin^2/cos^2
\n" ); document.write( "sin^2cos^2 + sin^4 = sin^2
\n" ); document.write( "sin^2(cos^2 + sin^2) = sin^2
\n" ); document.write( "sin^2 = sin^2\r
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