EPTMy answer was 9(ln(ln(2x)) +C
My friend's answer was 9(ln(ln(2x)) +C
Wolfram Alpha's answer was 9(ln(ln(2x))+C
Any math genius got a better answer, I think I'm missing something very obvious..
![[image loading]](http://img339.imageshack.us/i/39382361.png/)
Simple Calc Problem
| Blogs > Deleted User 47542 |
|
Deleted User 47542
1484 Posts
My answer was 9(ln(ln(2x)) +C My friend's answer was 9(ln(ln(2x)) +C Wolfram Alpha's answer was 9(ln(ln(2x))+C Any math genius got a better answer, I think I'm missing something very obvious.. | ||
|
Zergneedsfood
United States10671 Posts
 I swear it's a bug. I've seen and solved this question thousands of times by now. | ||
|
kevymon
United States32 Posts
| ||
|
Zergneedsfood
United States10671 Posts
On April 30 2011 13:20 qKz wrote: i got (9/2)(ln(ln2x))+C ....? Where did the 9/2 come from? oO I was under the impression that when you do u-substitution on the ln(2x), the 2 cancels out. | ||
|
Deleted User 47542
1484 Posts
On April 30 2011 13:17 Zergneedsfood wrote: Got the same answer. I swear it's a bug. I've seen and solved this question thousands of times by now. Arggggg, yeah most likely a bug then. (9/2)(ln(ln2x)) didn't work x-x | ||
|
kevymon
United States32 Posts
| ||
infinitestory
United States4053 Posts
| ||
|
Zergneedsfood
United States10671 Posts
On April 30 2011 13:30 infinitestory wrote: do you have a way to input absolute value signs That's what I was thinking. Technically, it should be an absolute value...like this: 9ln|ln(2x)| +C | ||
|
ghrur
United States3786 Posts
Like ln((ln(2x)^9) or 9ln(ln2)+ln(x)) Oh, try abs() for absolute value? :/ | ||
|
EtherealDeath
United States8366 Posts
edit - shit nvm there's a 2x not 2 in the ln nvm nvm back to what you guys were saying | ||
|
Froadac
United States6733 Posts
| ||
Megaliskuu
United States5123 Posts
On April 30 2011 13:55 Froadac wrote: http://www.wolframalpha.com/input/?i= integral of 9dx/(xln(2x)) Yeah thats what he got... | ||
|
Deleted User 47542
1484 Posts
On April 30 2011 13:31 Zergneedsfood wrote: That's what I was thinking. Technically, it should be an absolute value...like this: 9ln|ln(2x)| +C worked! THANKS | ||
| ||
