document.write( "Question 1036513: Find the exact value of cos(pi) cos(3pi/4) + sin(pi) sin (3pi/4) \n" ); document.write( "
Algebra.Com's Answer #651203 by MathTherapy(10552)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Find the exact value of cos(pi) cos(3pi/4) + sin(pi) sin (3pi/4) \n" ); document.write( " This represents the COSINE Difference of 2 angles, as follows:\n" ); document.write( " |