document.write( "Question 1167296: 2tan^2x sinx-tan^2x=0 \n" ); document.write( "
Algebra.Com's Answer #791901 by josgarithmetic(39617)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Maybe you are given \"2%2Atan%5E2%28x%29%2Asin%28x%29-tan%5E2%28x%29=0\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28tan%5E2%28x%29%29%282sin%28x%29-1%29=0\"
\n" ); document.write( "(Use zero-product principle and simple knowledge of unit-circle.)
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