r is an integer taking values from 1 to 10. f(x) is {pdt.(x+r)}*{summ.(1/x+r)}. f(x) is integrated from x=0 to x=1, and the resultant value obtained is m. Find m.
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Spandy
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- 29-01-2015 14:33
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- 29-01-2015 14:34
(Original post by Spandy)
r is an integer taking values from 1 to 10. f(x) is {pdt.(x+r)}*{summ.(1/x+r)}. f(x) is integrated from x=0 to x=1, and the resultant value obtained is m. Find m. -
Spandy
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- 29-01-2015 14:37
(Original post by TeeEm)
please post a photo of the question -
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- 29-01-2015 14:39
(Original post by Spandy)
Was trying that, but my webcam seems to be messed up. Hold on... -
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- 29-01-2015 14:49
NUMBER 5
Last edited by Spandy; 29-01-2015 at 14:50. -
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- 29-01-2015 15:03
I am solving PDEs at the moment and they are nothing compared to this.
I can only think of doing the actual integration, and I can only think of integration by parts under these signs
Need time ... and a brain transplant
Brain is thinking
reduction formulae (repeated integration by parts)
change into Beta Functions (limits)Last edited by TeeEm; 29-01-2015 at 15:07. -
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- 29-01-2015 18:22
(Original post by davros)
x -
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- 29-01-2015 18:22
(Original post by TeeEm)
MAN ALIVE!
I am solving PDEs at the moment and they are nothing compared to this.
I can only think of doing the actual integration, and I can only think of integration by parts under these signs
Need time ... and a brain transplant
Brain is thinking
reduction formulae (repeated integration by parts)
change into Beta Functions (limits) -
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- 29-01-2015 18:28
(Original post by Spandy)
Umm, and what might be beta functions?
Haven't had a chance to look at it properly as this requires serious thinking
(I can tell you that the answer is 10 .10! so O know what the answer is but I cannot prove it)
I am very busy to be looking at hard maths today but I will look at it tomorrow afternoonLast edited by TeeEm; 30-01-2015 at 16:20. -
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- 29-01-2015 18:29
(Original post by TeeEm)
probably not needed here (it is an integral function with identical limits to yours)
Haven't had a chance to look at it properly as this requires serious thinking
(I can tell you that the answer is 10! so O know what the answer is but I cannot prove it)
I am very busy to be looking at hard maths today but I will look at it tomorrow afternoon -
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- 30-01-2015 15:07
(Original post by Spandy)
Thanks! Your help would be most appreciated!
differentiate the product (logarithmic differentiation)
integrate the sum
still after that is disgustingLast edited by TeeEm; 30-01-2015 at 16:14. -
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- 30-01-2015 17:39
(Original post by Spandy)
Thanks! Your help would be most appreciated!
beautiful question... (+5) -
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- 31-01-2015 17:31
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- 31-01-2015 17:35
(Original post by Spandy)
No, I couldn't manage it. But then, I checked out the Q online , it was summ.(x+r), not summ.(1/(x+r))
as it was printed on the paper -
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- 31-01-2015 17:44
Can you post your method here please?
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- 31-01-2015 17:50
I already added the question in one of my booklets
(it willbe the last question in this link http://www.madasmaths.com/archive/ma...ons_part_i.pdf)
Do not download it yet because although I have updated the booklet in my computer I have not uploaded it yet in the site. I am planning to upload in about 6 hours.
hope you can wait -
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- 31-01-2015 17:58
(Original post by TeeEm)
I would love to but posting full solutions is not allowed in this site. As I do not feel I am very popular here I run the risk of being reported ...
I already added the question in one of my booklets
(it willbe the last question in this link http://www.madasmaths.com/archive/ma...ons_part_i.pdf)
Do not download it yet because although I have updated the booklet in my computer I have not uploaded it yet in the site. I am planning to upload in about 6 hours.
hope you can wait -
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- 31-01-2015 18:00
(Original post by Spandy)
Of course, given that its about midnight here, I believe I should catch up some sleep. Thanks again.
you will see it in the morning
it is Q208
It takes a long time to download as it is a very big file.
Goodnight.
EDIT: I just updated 21.34 GMT your question is on lineLast edited by TeeEm; 31-01-2015 at 21:33. -
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- 01-02-2015 19:00
(Original post by TeeEm)
no worries
you will see it in the morning
it is Q208
It takes a long time to download as it is a very big file.
Goodnight.
EDIT: I just updated 21.34 GMT your question is on line -
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- 01-02-2015 19:03
(Original post by Spandy)
Do I have permission to download the entire file, its a treasure trove!
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