document.write( "Question 973868: Write the expression in terms of cos(x)... Cos^4(x)-sin^4(x)+sin^2(x) \n" ); document.write( "
Algebra.Com's Answer #595908 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"cos%5E4%28x%29-sin%5E4%28x%29%2Bsin%5E2%28x%29\"\r\n" );
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document.write( "\"%28cos%5E2%28x%29%5E%22%22-sin%5E2%28x%29%29%281%5E%22%22%29%2Bsin%5E2%28x%29\"\r\n" );
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document.write( "\"cos%5E2%28x%29-sin%5E2%28x%29%2Bsin%5E2%28x%29\"\r\n" );
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document.write( "\"cos%5E2%28x%29-cross%28sin%5E2%28x%29%29%2Bcross%28sin%5E2%28x%29%29\"\r\n" );
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document.write( "\"cos%5E2%28x%29\"\r\n" );
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document.write( "Edwin
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