## abs4 Group Title how to integrate when the power is -1 therefore the whole power comes as 0 2 years ago 2 years ago

You mean$\int x^{-1}$

2. abs4

yeah..:)

3. wio

Remember that if $$\large f(x) = \ln(x)$$ then $$\large f^\prime(x) = \frac{1}{x}$$

Yeah, what @wio said.

5. wio

Integration is just finding the anti-derivative!

6. abs4

so if i want to integrate -3x ^ (-1) then what is the answeR?

$\int(-3)x^{-1}\,dx=-3\int\frac1x\,dx=-3\ln|x|+C$

8. abs4

ok thanks! :)

9. hartnn

@abs4 $$\huge \color{red}{\text{Welcome to Open Study}}\ddot\smile$$

Aw dang @hartnn you're like late.

11. hartnn

lol! late for what?

The welcome comes first, so that the person who answers the question looks more awesome.