Look at this webpage.
I am working on a integration by parts problem.
Setting , then , and
Plugging into the equation, we get:
I am good with all of that, except the 4 in the numerator of the integrand. I don't see where that comes from, since v=t. With the 4, it does lead to the correct answer.
Can someone explain?
Look at this webpage.
You have a lot of typos that make this very difficult to read. You mean
and . Then and . An error that I think is NOT a typo is that you have without the "4" in the numerator. You need that because of the "chain rule". To differentiate , let y= 4t so that . Then and . By the chain rule, .
Plugging into the equation, we get:
I am good with all of that, except the 4 in the numerator of the integrand. I don't see where that comes from, since v=t. With the 4, it does lead to the correct answer.
Can someone explain?