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# Intergration by substitution watch

1. Hey.
Can anyone find the mistake i have made been staring at it for a while and cant see it. The answer should be (9 pie/4)
i hope its clear enough.

Thanks.
2. reserved !!!
3. Line 4-5 from the top.

4. You forgot the 3 on the denominator.
5. (Original post by TeeEm)
reserved !!!
Fair play lol, you take it.
6. (Original post by B_9710)

You forgot the 3 on the denominator.
Damn ninjaed!
7. (Original post by SamuelN98)
Hey.
Can anyone find the mistake i have made been staring at it for a while and cant see it. The answer should be (9 pie/4)
i hope its clear enough.

Thanks.

the 9 inside the square root vanished
8. (Original post by TeeEm)
reserved !!!
I did not see this.
9. Thanks again, and for the quick reply.
10. (Original post by TeeEm)
reserved !!!
I'm liking this strategy

I'm always very late these days
11. (Original post by Indeterminate)
I'm liking this strategy

I'm always very late these days
has to be done ...
12. (Original post by Indeterminate)
I'm liking this strategy

I'm always very late these days
You can put in something like 'answer in progress' and then edit the answer in.
13. (Original post by EricPiphany)
You can put in something like 'answer in progress' and then edit the answer in.
Ooh, I could certainly get on Zacken's nerves by doing that
14. (Original post by Indeterminate)
Ooh, I could certainly get on Zacken's nerves by doing that
I was going to say you could sit on the unanswered thread page clicking refresh, which I thought was what Zacken did, but I checked the page now, and it doesn't even seem to be working correctly.
15. (Original post by EricPiphany)
I was going to say you could sit on the unanswered thread page clicking refresh, which I thought was what Zacken did, but I checked the page now, and it doesn't even seem to be working correctly.
He probably just sits on the maths forum waiting to pounce

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