document.write( "Question 1181260: cos4xcos3x-sin4xsin3x \n" ); document.write( "
Algebra.Com's Answer #811121 by greenestamps(13215) You can put this solution on YOUR website! \n" ); document.write( "No question? \n" ); document.write( "cos(A)cos(B)-sin(A)sin(B) = cos(A+B).... \n" ); document.write( " \n" ); document.write( " |