Help on an integration question? :)
Maths and statistics discussion, revision, exam and homework help.
This thread is sponsored by:
| Announcements | Posted on | |
|---|---|---|
| Important: please read these guidelines before posting about exams on The Student Room | 28-04-2013 | |
-
- Reputation:
- TSR Demigod
- Posts: 5,512
Re: Help on an integration question? :)Remember,(Original post by tomo876)
hmm i know that:
∫ xcos2x
= ((xsin2x)/2) + ((cos2x)/4)
but then it asks, "Use your answer to find
∫x(cos^2)x
any help would be much appreciated
Now use the result of the previous part along with the new integration required. -
- Reputation:
- TSR Demigod
- Posts: 5,512
Re: Help on an integration question? :)Why integration by parts?(Original post by Brit_Miller)
Try integration by parts
He already has the result of
, so i don't see any reason for it.
-
- Reputation:
- Benevolent Member
- Location: Bristol
- Posts: 694
Re: Help on an integration question? :)Ignore me, I read it wrong, I thought it looked like something you could use a reduction formula for but had already posted and you can't delete it.(Original post by raheem94)
Why integration by parts?
He already has the result of, so i don't see any reason for it.
-
- Reputation:
- TSR Demigod
- Posts: 5,512
Re: Help on an integration question? :)Posts can be deleted.(Original post by Brit_Miller)
Ignore me, I read it wrong, I thought it looked like something you could use a reduction formula for but had already posted and you can't delete it.
Just click on the edit button, you will see an option to delete. -
- Reputation:
- Benevolent Member
- Location: Bristol
- Posts: 694
Re: Help on an integration question? :)Oh yeah, cheers, I didn't know that.(Original post by raheem94)
Posts can be deleted.
Just click on the edit button, you will see an option to delete.
