document.write( "Question 1005320: Verify the identify\r
\n" );
document.write( "\n" );
document.write( "cos^2x-sin^2x=2cos^2x-1\r
\n" );
document.write( "\n" );
document.write( "Thank you in advance \n" );
document.write( "
Algebra.Com's Answer #621621 by ikleyn(52834)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Verify the identify \n" ); document.write( "cos^2x - sin^2x = 2cos^2x - 1 \n" ); document.write( "--------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |