Question

Integrals:

Answer 1

http://prntscr.com/3f4qjj

Answer 2

ok, so think about limits. if you want to do a substitution, you make sure the new thing goes to the correct thing right?

Answer 3

ie if you have \[lim_{n \rightarrow \infty} \frac{5}{x^2+10}\] and you let \(u=x^2+10\)then you have to remember to change the limit and see what happens to your u as it goes to infinity

Answer 4

similar idea here

Answer 5

@Luigi0210 I have this thing that pops up everywhere I click D: