Hello,

Problem:

Show that:

where m and n are nonnegative integers..

I want a start, maybe a substitution?

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- Jul 15th 2010, 04:13 PMBayernMunichIntegral proof ..
**Hello,**

**Problem:**

**Show that:**

**where m and n are nonnegative integers..**

**I want a start, maybe a substitution?** - Jul 15th 2010, 04:20 PMBayernMunich
**Am focus on the gamma function..**

**I used the substitution ..**

**The integral will be:**

**I stopped here, any idea?** - Jul 15th 2010, 04:25 PMBayernMunich
**Thanks, I solved it =)**

The last step is to substitute and recalling that ..