x^1/3 + x. I need to find the second derivative. I came up with -2/ 3x^2/3 for the first..(Worried)

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- Dec 14th 2009, 03:01 PMav8or91fractional exponent derivative
x^1/3 + x. I need to find the second derivative. I came up with -2/ 3x^2/3 for the first..(Worried)

- Dec 14th 2009, 03:03 PMe^(i*pi)
- Dec 14th 2009, 03:04 PMProve It
- Dec 14th 2009, 03:09 PMav8or91
Thanks, basically trying to find concave up and concave down then the inflection points.