# Homework Help: D/dx of the integral from 0 to x^3 of ln(t^2 + 1)

1. Apr 11, 2010

### IntegrateMe

$$\int_{0}^{x3} ln(t^2 + 1) dt$$

^take the derivative of that...sorry the upper-limit is x3 NOT 2x.

how is the answer 3x2 ln (x6 + 1) ?

2. Apr 11, 2010

### gabbagabbahey

Use the chain rule and the fundamental theorem of calculus. And show us your attempt.

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