Question

Find the integral of (x-4)/x^2 dx from 1 to 2. (Answer: ln(2)-2.) ( I got 1/x-4/x^2 and should I integrate that from 1 to 2?)

Answer 1

yes, do that
integrate 1/x - 4/x^2 first :)

Answer 2

But I have trouble integrating those.

Answer 3

integral of 1/x is standard formula
\(\int \dfrac{1}{x}dx = \ln x + c\)


for 4/x^2 ,
1/x^2 = x^-2
and so you can use the x^n formula

Answer 4

Thanks. I'll try that.

Answer 5

could you solve it ?

Answer 6

Yes, I finally got it. Thank you so much. It worked.

Answer 7

most welcome ^_^

Answer 8

Thanks for the medal.