document.write( "Question 1010654: Prove that sin(x+y)=2cos(x+y)/2+cos(x+y)/2 \n" ); document.write( "
Algebra.Com's Answer #626113 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "That isn't an identity.  It cannot be proven because it is\r\n" );
document.write( "not generally true.  You must have copied it wrong.\r\n" );
document.write( "\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );