battlestar
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- Nov 14, 2010
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I do not even know where to begin...please help!
sin(X)sin(x+2)-sin^2(x+1) = [cos(2)-1]/[2]
sin(X)sin(x+2)-sin^2(x+1) = [cos(2)-1]/[2]
battlestar said:I do not even know where to begin...please help!
sin(X)sin(x+2)-sin^2(x+1) = [cos(2)-1]/[2]
\(\displaystyle \text{Prove: }\;\sin x \sin(x+2) -\sin^2(x+1) \:=\: \frac{\cos(2)-1}{2}\)
battlestar said:I do not even know where to begin...please help!
sin(X)sin(x+2)-sin^2(x+1) = [cos(2)-1]/[2]