document.write( "Question 1011603: prove that sin^6 theta = -1/32 (cos 6 theta - 6 cos 4 theta + 16 cos 2 theta - 10). \n" ); document.write( "

Algebra.Com's Answer #627347 by Edwin McCravy(20064) $\"\"$ $\"About$

You can put this solution on YOUR website!

\r\n" );
document.write( "\r\n" );
document.write( "It isn't true!  So instead of proving it, let's disprove it:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "We'll just prove that it isn't true by substituting \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "sin(0) = 0 and cos(0) = 1, so\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "So that is false.  Did you perhaps copy it wrong?\r\n" );
document.write( "\r\n" );
document.write( "Edwin

\n" ); document.write( "

\n" );