I must show, using integration by parts that for all positive . I've tried but I don't get the result. The fact that the integral is dt and that the function depends of x is responsible of my fail.
Can you start me up?
The notation that is used is not that right.
You should say that u is a function of t.
So this is , not
I think the better way not to be confused is to take n instead of x. So that we're almost sure not to take n as a variable, since we barely use it as a variable
Oops!! I got confused! I thought I had to do it with respect to x... how could I understand then, that if , then !!!
My exam of Calculus II is coming up next 21st of July, so I have all the time to fix such problems of mine. A big thanks to you.