document.write( "Question 730240: Hi!\r
\n" ); document.write( "\n" ); document.write( "Simplify:
\n" ); document.write( "\"+%281-2sin%5E2%28x%29%29%2F%28cos%5E2%28x%29%29%2Btan%5E2%28x%29+\"\r
\n" ); document.write( "\n" ); document.write( "Would be nice to have explanations too.
\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #446591 by fcabanski(1391)\"\" \"About 
You can put this solution on YOUR website!
\"tan%5E2%28x%29+=+sin%5E2%28x%29%2Fcos%5E2%28x%29\"


\n" ); document.write( "\"sin%5E2%28x%29+%2B+cos%5E2%28x%29=1\" so \"cos%5E2%28x%29+=+1-sin%5E2%28x%29\"


\n" ); document.write( "So the expression becomes


\n" ); document.write( "They have the same denominator, so now add them.


\n" ); document.write( "Look at the denominators: \"1-2%2Asin%5E2%28x%29+%2B+sin%5E2%28x%29+=+1-sin%5E2%28x%29\"


\n" ); document.write( "That goes over the common denominator: \"%281-sin%5E2%28x%29%29%2F%281-sin%5E2%28x%29%29+=+1\" \n" ); document.write( "

\n" );