document.write( "Question 1197097: compute dy/dx if:
\n" ); document.write( "(a) sin y = cos 2x
\n" ); document.write( "(b) x + sin y = xy
\n" ); document.write( "

Algebra.Com's Answer #830207 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "\"system%28sin%28y%29=cos%282x%29%2Cx%2Bsin%28y%29=xy%29\"\r\n" );
document.write( "\r\n" );
document.write( "Differentiate terme by term:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The left sides are equal, so we set the right sides equal\r\n" );
document.write( "\r\n" );
document.write( "\"-2sin%282x%29=x%2Aexpr%28dy%2Fdx%29%2By-1\"\r\n" );
document.write( "\r\n" );
document.write( "Solve that for \"dy%2Fdx\".  You finish.\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );