Hi guys, how do you prove these 2:
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Originally Posted by gp3 Hi guys, how do you prove these 2: LHS = = = = = = = = RHS ----------------------------------------------------------------------------------- RHS = = = = = = = LHS
Last edited by alexmahone; November 28th 2009 at 11:56 PM.
Hello gp3 Originally Posted by gp3 Hi guys, how do you prove these 2: Grandad
hi guys, thanks for your help. I dont understand how you got this part: =\frac{\sin(3x+x)}{\tfrac12\sin2x} and this part: =\frac{1}{\sqrt2}\left(\cos\frac{\theta}{2}-\sin\frac{\theta}{2}\right
Hello gp3 Originally Posted by gp3 hi guys, thanks for your help. I dont understand how you got this part: =\frac{\sin(3x+x)}{\tfrac12\sin2x} and this part: =\frac{1}{\sqrt2}\left(\cos\frac{\theta}{2}-\sin\frac{\theta}{2}\right Grandad
erm, i don't understand why is the part in bracket squared? =\sqrt{\frac{1}{2}\left(1-\sin\theta\right)} and how did you get to 1-Sin? sorry for so many questions, i'm rather weak in my maths!
Hello gp3 Originally Posted by gp3 erm, i don't understand why is the part in bracket squared? =\sqrt{\frac{1}{2}\left(1-\sin\theta\right)} and how did you get to 1-Sin? sorry for so many questions, i'm rather weak in my maths! Keep at it - it will come in time! Grandad
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