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#26 Re: Help Me ! » integrals » 2014-05-21 19:43:06
Thanks for posting this up 
Can you exaplin in a little more depth what this means?:
#27 Re: Help Me ! » Properties of Integrals » 2014-05-21 16:13:26
Ok, so I asked a tutor about this question today and was told not to bother with it (apparently an older version of the question sheet had been posted up & it was incomplete) 
This is the new one:
Is this statement valid?I've worked a little on it before getting stuck at:
#28 Re: Help Me ! » Properties of Integrals » 2014-05-21 03:59:41
What do I do with h?
Do i make it du=hdx
#29 Re: Help Me ! » Properties of Integrals » 2014-05-21 03:18:33
Okay, so this then?
#30 Re: Help Me ! » Properties of Integrals » 2014-05-21 02:47:07
As in this?
and then add in the limits?
#31 Re: Help Me ! » Properties of Integrals » 2014-05-21 02:21:54
Not really understanding what you mean by that
#32 Re: Help Me ! » Properties of Integrals » 2014-05-21 01:23:58
okay. So sub u=x-2, so it's h(u) and take 3 out to the front?
Where would I go from there?
#33 Help Me ! » Properties of Integrals » 2014-05-21 01:01:20
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More integral questions...
So, I think I know what to do overall (apply the properties of integrals to the second expression and then sub in 5 for h(x) ) not too sure how to get there though.
Do I start off with this?
#34 Re: Help Me ! » integrals » 2014-05-20 19:39:25
Thanks!
#35 Help Me ! » integrals » 2014-05-20 13:41:48
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I've tried a number of equations for the above statement, and from the answers I get it seems like it's true?
If it is true, is there any theory that I can use to explain the statement?
#36 Re: Help Me ! » Derivatives. » 2014-04-15 12:50:15
Thanks
#37 Re: Help Me ! » Derivatives. » 2014-04-15 12:34:28
I managed to simplify it to get the answer
#38 Re: Help Me ! » Derivatives. » 2014-04-15 12:19:23
Thankyou Got the right answer
#39 Re: Help Me ! » Derivatives. » 2014-04-15 11:46:01
So I used the product rule; then applied it all to the chain rule and got
i.imgur.com/McRIMWE.png
having trouble with simplifying it though
#40 Re: Help Me ! » Derivatives. » 2014-04-15 10:58:14
Okay, so not the complete answer, but am I going in the right direction?
and then apply the chain rule?
where<--- not sure how to get the derivative of this. I think it's the product rule where...
and
#41 Re: Help Me ! » Derivatives. » 2014-04-15 10:27:39
Actually, not the chain rule.
Would I use the quotient rule?
Edit: wait. I'll stick with the chain rule I think I might know how to solve this. I'll post the answer in a bit.
#42 Re: Help Me ! » Derivatives. » 2014-04-15 10:09:11
Okay, sorry it's been a long day. I just realized that the working out I put up was for a different question too 
#43 Re: Help Me ! » Derivatives. » 2014-04-15 10:00:47
Whoops, there's a typo in the question; it's supposed to be
Could I still use the chain rule?
#44 Re: Help Me ! » Derivatives. » 2014-04-15 05:08:34
Sorry, hopefully this is more clear (the question, with some of my working out)
i.imgur.com/VyT9EPC.jpg