Home » Ask & Discuss » Mathematics. » Integral Calculus « Back to Discussion

Integral Calculus

Cool goIITian

Joined:	26 Jun 2007
Post:	42

15 Oct 2008 10:29:23 IST

0 People liked this

478

integration

None

Share this article on:

Comments (5)

JINISH

Hot goIITian

Joined: 19 Sep 2008

Posts: 129

15 Oct 2008 10:45:47 IST

Like 0 people liked this

JINISH

Hot goIITian

Joined: 19 Sep 2008

Posts: 129

15 Oct 2008 10:47:17 IST

Like 0 people liked this

tell me whether the answer is correct or not ?

SOVAN NAYAK

Cool goIITian

Joined: 4 Oct 2008

Posts: 54

15 Oct 2008 11:32:57 IST

Like 1 people liked this

multiply sec^2 x to numerator and denominator
=1/(1+4tan^2 x) *dx
take tan x =t
=1/(1+t^2)*(1+4t^2) *dx
apply partial fractions
A/1+y +B/1+4Y (for simplicity take t^2 as y)
A(1+4y)+B(1+y)=1
a=-1/3,b=4/3
apply stndard formula tocalculate integration ,take limits tobe 0 and infinity
please rate

Krishna Gopal Singh

Forum Expert

Joined: 29 Dec 2006

Posts: 5153

15 Oct 2008 12:22:11 IST

Like 0 people liked this

Right answer sovan. Wel done,

JINISH

Hot goIITian

Joined: 19 Sep 2008

Posts: 129

15 Oct 2008 12:29:59 IST

Like 0 people liked this

but the answer is right na ?

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team