- #1

springo

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## Homework Statement

What's the derivative of the following two:

[tex]\int_{a}^{h(x)}f(t)\,\mathrm{d}t[/tex]

[tex]\int_{u(x)}^{v(x)}f(t)\,\mathrm{d}t[/tex]

## Homework Equations

## The Attempt at a Solution

I thought of doing the following:

[tex]\int_{h(a)}^{h(x)}f(t)\,\mathrm{d}t = \int_{a}^{x}f\circ h(u)\cdot h'(u)\,\mathrm{d}u[/tex]

(with t = h(u) )

But then I don't know how to continue.

Thanks for your help.