document.write( "Question 1117224: cos 2 theta cos 2 fi + sin^2(theta + fi) - sin^2( theta + fi)= cos(2 theta + 2 fi) \n" ); document.write( "
Algebra.Com's Answer #732316 by Alan3354(69443) You can put this solution on YOUR website! cos 2 theta cos 2 fi + sin^2(theta + fi) - sin^2( theta + fi)= cos(2 theta + 2 fi) \n" ); document.write( "-------------- \n" ); document.write( "Do you have a question? \n" ); document.write( " |