document.write( "Question 366623: Verify that sec(x)-cos(x)=tan(x)sin(x) is an identity. \n" ); document.write( "
Algebra.Com's Answer #261287 by Alan3354(69443)\"\" \"About 
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sec(x)-cos(x)=tan(x)sin(x)
\n" ); document.write( "Change to sines and cosines
\n" ); document.write( "1/cos - cos = (sin/cos)*sin
\n" ); document.write( "Multiply by cos
\n" ); document.write( "1 - cos^2 = sin^2
\n" ); document.write( "I'm convinced.
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