# Math Help - integral ... hard?

1. ## integral ... hard?

Calculate $\int_0^x \dfrac{(\lambda t)^{n-1}exp(-\lambda t)}{(n-1)!}dt$

2. You can't, unless $x\to\infty.$

I didn't answer your question in FMAT since I thought that it was a typo.

3. Originally Posted by jorgeston
Calculate $\int_0^x \dfrac{(\lambda t)^{n-1}exp(-\lambda t)}{(n-1)!}dt$
Following from what special K said, I've had reason to consider very similar. Read the attachment.

This integral appears in an continius distribution problem ( probability and statistics)
, and $x=30$ specifically

5. Originally Posted by jorgeston

This integral appears in an continius distribution problem ( probability and statistics)
, and $x=30$ specifically
If you've read the attachment you'll see why integral terminals like the ones Krizalid mentions are required. Post the whole question.