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Integral Calculus

Blazing goIITian

Joined:	24 Dec 2006
Post:	1312

21 Mar 2008 20:28:36 IST

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x square / sin square x

x / tan x

integrate them between 0 to pi/2

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Avi .....

Blazing goIITian

Joined: 19 Feb 2008

Posts: 318

21 Mar 2008 22:53:07 IST

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first apply integration by parts in x²/sin²x dx
then u will get xcotx in integral...

and its solution is here as under....

arpan1

Blazing goIITian

Joined: 15 Mar 2008

Posts: 684

21 Mar 2008 23:19:48 IST

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ans to first part is -

log(2)

rate me, if useful

nudge me for complete solution

Abhijith

Blazing goIITian

Joined: 23 Jan 2007

Posts: 678

22 Mar 2008 13:45:32 IST

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sorry if i am being rude, but i just cant seem to understand. y is that u pester people for rates? Why dont u post the entire solution? It would save both of you a lot of time.

arpan1

Blazing goIITian

Joined: 15 Mar 2008

Posts: 684

22 Mar 2008 14:27:11 IST

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see, this forum is intended to help people do problems themselves, only that they need bit of understanding and clearance of doubts..

i hope that koni will not write the exams for all of us...

i post ans. only, so that people may try the ques. themselves first....

secondly, there is no harm in asking for rates provided u ans the query...
this is my way of appreciating my work...

hope u got it

Abhijith

Blazing goIITian

Joined: 23 Jan 2007

Posts: 678

22 Mar 2008 14:41:47 IST

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well ok maybe for MCQs it might help them if you told them the solution or atleast if you drop hints. But what use is it telling the person the answer is something like log2? If he/she was able to arrive at it, the question wouldnt have been posted after all.

And no, there is no harm wanting rates. But I think if the solution really deserves it, u'll surely get the rates u deserved. In other words, it is best to let others decide whether to rate or not.

By the way, I have nothing against u. I am just telling you my view on it.

arpan1

Blazing goIITian

Joined: 15 Mar 2008

Posts: 684

22 Mar 2008 14:58:41 IST

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@ koni
thanks buddy.. i will give the outlines of my solution, wherever required...

firstly, this was a simple one and mostly people do not attempt ques. because they do noy have an ans to verify..

thats why i provide the answer first...

i liked ur suggestions, i will take care of them..

btw, u rock dude !!!

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