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November 21, 2014

November 21, 2014

Posted by **Rudy** on Tuesday, October 30, 2012 at 11:58pm.

2. Find all relative extrema of the function f(x)=2x^4-16x^3+4. Use the Second Derivative Test where applicable.

- Calculus -
**Steve**, Wednesday, October 31, 2012 at 10:49amas you know,

extrema where f'=0 and f''≠0

1.

f' = 6/7 x^(-1/7) is never zero

2.

f' = 24x^2 - 96x = 24x(x-4)

f'' = 48x

should be easy now to locate extrema

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