[tex]\int_2^{inf} \frac{2}{(x+3)^{3/2}}[/tex](adsbygoogle = window.adsbygoogle || []).push({});

integrating the problem, i get:

[tex]\frac{-4}{sqrt(x+3)}[/tex]

now integrating from 2 to inf(replaced with b), plugging in 2, i get -4/5:

f(b) + 4/5

lim->inf

it looks like f(b), lim->inf goes to -4 X 10^-inf

so wouldnt the answer just be divergent? i also tried 4/5 and -4/5, but it wouldnt work. i dont really know the proper way to find the limit. all i do is plug in the largests number and try to find a pattern.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Improper integrals

**Physics Forums | Science Articles, Homework Help, Discussion**