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Thread moved from the technical forums, so no Homework Template is shown

Hi. I think I jumped too eagerly into my latest module, as I am positive it makes many assumptions on previous experience. I am obviously lacking.

I have created a question in Word, but the equations don;t appear to be copying into this thread. So I have uploaded question instead. If this is against the rules please let me know, and I will attempt to re-create the equations here instead.

The question involves integration of ∫x(^(a-1)) e(^(-bx)) dx - and I have shown in the word doc what I think I need to do. However, the final answer is:

Γ(a)/ba

Which I know I won;t get from integration, but my answer should relate to this answer, using one of the distribution methods.

Many thanks

I have created a question in Word, but the equations don;t appear to be copying into this thread. So I have uploaded question instead. If this is against the rules please let me know, and I will attempt to re-create the equations here instead.

The question involves integration of ∫x(^(a-1)) e(^(-bx)) dx - and I have shown in the word doc what I think I need to do. However, the final answer is:

Γ(a)/ba

Which I know I won;t get from integration, but my answer should relate to this answer, using one of the distribution methods.

Many thanks