So i have to show that there is no minimum.

thus i have to differentiate the function, which apparently gives this

I don't know how they got that answer , can someone please explain?

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- Sep 1st 2009, 07:17 PMel123finding minimum

So i have to show that there is no minimum.

thus i have to differentiate the function, which apparently gives this

I don't know how they got that answer , can someone please explain? - Sep 1st 2009, 07:31 PMskeeter
- Sep 1st 2009, 07:37 PMel123
Thanks.