document.write( "Question 599104: I believe I did the problem correctly, but would like some assurance.\r
\n" );
document.write( "\n" );
document.write( "Proving a trig identity: cosx/cscx-sinx=tanx\r
\n" );
document.write( "\n" );
document.write( "cosx/cscx-sinx
\n" );
document.write( "= cosx/1/sinx-sinx
\n" );
document.write( "= cosx/1/sinx-sinx/1 x sinx/sinx
\n" );
document.write( "= cosx/1-sin^2x/sinx
\n" );
document.write( "= cosx/cos^2x/sinx
\n" );
document.write( "= cosx/1 x sinx/cos^2x
\n" );
document.write( "= cosxsinx/cos^2x (cancel out)
\n" );
document.write( "= sinx/cosx
\n" );
document.write( "= tanx \n" );
document.write( "
Algebra.Com's Answer #378831 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! You are correct. Nice work. The only issue I would point out is the use of parenthesis would make things look a bit cleaner. \n" ); document.write( " |