If ,y= show that
Last edited by srirahulan; July 6th 2013 at 08:35 PM.
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Now let , then
Now remembering that that means , and so , NOT .
We have: .
From , we have: .
Substitute into : . . . . . . . Therefore: .
It appears I am unable to edit my previous post. I for some reason forgot that the second derivative is , not .
Another way is:
We can write as .
Now differentiate both sides:
Cancelling on both sides, we get .
Differentiating this equation we get, .
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