# Thread: I cant figure out this Indefinite integral ..

1. ## I cant figure out this Indefinite integral ..

Hello,

Any help would be greatly appreciated. Thanks!

Evaluate the indefinite integral

2. Originally Posted by xcelxp
Hello,

Any help would be greatly appreciated. Thanks!

Evaluate the indefinite integral

so this isn't much harder than the ones you've been posting, just rewrite so you can use the power rule

3. I wasnt changing x^-1 into ln(x)

why aren't you a moderator?!?!?!

4. Originally Posted by xcelxp
Hello,

Any help would be greatly appreciated. Thanks!

Evaluate the indefinite integral

Have you learned the integration rules? This is a basic integral, and if you're wanting to solve harder integrals it's imperative you take the time to learn these simple ones.

int(6/(x^2) + 16/(13x)dx) = int(6/(x^2)dx) + int(16/(13x)dx)

= int(6*x^(-2)dx) + int(16/3*(1/x)dx
= (6*x^(-1))/-1 +

= -6/x + (16/13)*ln(x) + C

5. Originally Posted by xcelxp
I wasnt changing x^-1 into ln(x)

why aren't you a moderator?!?!?!
moderators are veterans, they've been with this site for a long time, i've just been here for a little over a month i think

and also, i'm not smart enough to be one those guys are way out of my league

ah man, i forgot to do that, "this is my 8th post" thing, which seems to be a custom on this site.

6. Congrats on your 800th post... and I have a very basic understanding ....

btw I am reading the book and trying to understand the problems

with 2 hours to go before this home work is due ... and 4 more problems left im making simple mistakes... and jumping all over the place...

You guys are helping a lot! I know I shouldnt have saved it for last minute.. but still .... I might as well try and get as much done as possible...

p.s. Im not as slow as you think

7. Originally Posted by xcelxp
Congrats on your 800th post... and I have a very basic understanding ....

btw I am reading the book and trying to understand the problems

with 2 hours to go before this home work is due ... and 4 more problems left im making simple mistakes... and jumping all over the place...

You guys are helping a lot! I know I shouldnt have saved it for last minute.. but still .... I might as well try and get as much done as possible...

p.s. Im not as slow as you think
i understand, i just got a simple interest question wrong, lol. i know the times when you're not at the top of your game, rushing last minute and doing math after not sleeping for 48 hours are such times