document.write( "Question 894401: how do i verify this identity?\r
\n" ); document.write( "\n" ); document.write( "(sec(alpha)-tan(alpha))(sec(apha)+tan(alpha))=1 \r
\n" ); document.write( "\n" ); document.write( "thanks! \n" ); document.write( "

Algebra.Com's Answer #542024 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
Change everything to sines and cosines. \n" ); document.write( "

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