E eahn176 New member Joined Dec 6, 2008 Messages 1 Dec 6, 2008 #1 1)how to solve: csc2x+cot2x=cotx 2) Express sin7x+sin3x as a product of only sines or cosines. THANK YOU!!!
1)how to solve: csc2x+cot2x=cotx 2) Express sin7x+sin3x as a product of only sines or cosines. THANK YOU!!!
R royhaas Full Member Joined Dec 14, 2005 Messages 832 Dec 6, 2008 #2 1. Express in terms of \(\displaystyle \sin(x), \cos(x)\). 2. Use \(\displaystyle \sin(A+B)+\sin(A-B)\).
1. Express in terms of \(\displaystyle \sin(x), \cos(x)\). 2. Use \(\displaystyle \sin(A+B)+\sin(A-B)\).
