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June 15th, 2008, 03:51 AM
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| | Trigonometry Identity Rearrangement Can someone show me how  equal to  ?
Thanks in advance. | 
June 15th, 2008, 03:54 AM
|  | A Cute Angle | | Join Date: Mar 2008 Location: P(I'm here)=1/3, P(I'm there)=t+1/3
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| | Hello, Quote:
Originally Posted by Air Can someone show me how  equal to  ?
Thanks in advance. |
Using the identity  , we get :
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June 15th, 2008, 03:58 AM
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| | ...So if we had something like:  , would that be  ? | 
June 15th, 2008, 03:59 AM
|  | A Cute Angle | | Join Date: Mar 2008 Location: P(I'm here)=1/3, P(I'm there)=t+1/3
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| | Quote:
Originally Posted by Air ...So if we had something like:  , would that be  ? | Yes =)
Always refer to double angle properties ^^
It's just a matter of substitution.
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