document.write( "Question 813090: prove identity
\n" ); document.write( "(2tanx)(secx)= 1/1-sinx - 1/1+sinx \n" ); document.write( "

Algebra.Com's Answer #489489 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "The other \"solution\" is NOT a solution.  Please ignore it!\r\n" );
document.write( "He thought it was an equation to solve, so he made a bunch of errors\r\n" );
document.write( "and got some crazy answer. Here's the way to prove the identity:\r\n" );
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document.write( "             =   \r\n" );
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document.write( "Edwin

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