|
|
|
|
|
| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 28 Nov 2007 17:02:11 IST
|
|
|
|
|
|
|
28 Nov 2007 17:27:01 IST
|
|
|
write cos 2x as cos^2x - sinn ^2 x
=thn make factors and u will be left wid
|
this reply: 0 points
(with 0 
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
28 Nov 2007 17:27:53 IST
|
|
|
cos x - sin x in the numerator
and so the answer will be
sin x + cos x
rate if useful....
|
this reply: 5 points
(with 1
in 1 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
28 Nov 2007 18:26:56 IST
|
|
|
aditi, correct ur answer.....since limits aren't mentioned
so, answer is sinx + cosx +c
|
LOKESH SARDANA,
department of Production and Industrial engineering,
Indian Institute of Technology,Roorkee.
Happiness can be found, even in the darkest of times, if one only remembers to turn on the light.
Albus Dumbledore
Harry Potter and the Prisoner of Azkaban movie
There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.
-- Albert Einstein
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
28 Nov 2007 19:36:45 IST
|
|
|
I =  cos2x / (cosx + sinx) .dx
I =  (cos2x - sin2x) / (cosx + sinx) .dx
I = (cosx + sinx).(cosx - sinx) / (cosx + sinx) .dx
I = (cosx - sinx).dx
I = sinx + cosx + c
|
Bipin Kumar Dubey
Chemical Dept.
IIT Kharagpur
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
1
