Question

I need help with this improper integral example please:

Answer 1

\[\int\limits_{1}^{b}\frac{ 1 }{ x ^{2} }dx=\left[ -x ^{-1}\right]_{1}^{b}\]

Answer 2

i dont get the step where I go from x^2 to -x^-1

Answer 3

\(\huge \int x^n dx = \dfrac{x^{n+1}}{n+1}+c\)
here
1/x^2 means x^-2
so, n= -2

Answer 4

wow thanks a lot! really couldn't recall this, my brain froze. appreciate it :)

Answer 5

welcome ^_^