Thursday
October 23, 2014

Homework Help: Math

Posted by Ifi on Sunday, October 28, 2012 at 12:00am.

Let f(t)=2t^4-2x^2-9. at what x does f have a local or absolute minimum or maximum?

I think the question is wrong bcus it is impossible to to have 2 unknown to find the relative max or min...right? Sorry if im wrong.
So i change it to f(x)=2x^4-2x^2-9
so for relative max is x = 0 and relative minimum is x= +/- 0.7071. Plz recheck back the answer.

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