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)![]() ![]() You can put this solution on YOUR website! 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. \n" ); document.write( " \n" ); document.write( " |