Hi I am asked to show that equals where , I get the following, but I am not sure where to go or if I have made a mistake Any ideas? Thanks in advance. James
Last edited by bobred; June 23rd 2010 at 02:39 AM.
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As an overall strategy, I would plug in and into your second equation, and leave the first equation alone. Simplify the second equation, and hopefully you'll see that it equals the first.
Hello James Originally Posted by bobred Hi I am asked to show that equals where , I get the following, but I am not sure where to go or if I have made a mistake Any ideas? Thanks in advance. James You are almost right, but you have lost a power of on the first inside the square root sign. When you take out the from , you get . So you should have Grandad
Hi Thanks to you both I have got there both ways now. James
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