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Prove an Identity watch
- Thread Starter
- 18-03-2011 06:50
- Study Helper
(Original post by Ari Ben Canaan)
- 18-03-2011 07:11
Prove the identity
Trust me, I have attempted this question, but I cant post the attempt as it is on a piece of paper and is too bloody long.
I would hope someone would be kind enough to post the step-by-step solution.
Start with the LHS and and repeatedly use the identity
Where Y will sometimes be 2x, and sometimes x, depending on what you're expanding.