| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Mar 2007 18:21:29 IST
|
|
|
evaluate integral :- sq.root of sinx
|
|
|
|
3 Mar 2007 18:29:11 IST
|
|
|
Hi Guys I am working on other method for it. Will put up the solution soon. Cheers!
|
Act..dont just think!!! It saves u time.... |
this reply: 0 points
(with 0 
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 18:34:53 IST
|
|
|
listen kiran,on differentiating ur answer ,we dont get sqr root (sinx).so it is wrong cheers !!!
|
light travels the fastest ??? NO
wherever light goes it always finds that darkness has already got there |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 18:34:56 IST
|
|
|
u r wrong this is not just a fn that u can evaluate as such sqrt sinx is a function in a function just differentiate ur answer and u will b able 2 see that u hav gone wrong
|
dbznfreak---watchin episodes for 6 yrs--movin on to dbgt
<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
<DIV ALIGN="right">Animated Letters</DIV></TD></TR></TABLE>
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 18:49:12 IST
|
|
|
take x = sin -1 sinx = d =cosx.dx d /cosx = dx evaluate further and get the answer
|
dbznfreak---watchin episodes for 6 yrs--movin on to dbgt
<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
<DIV ALIGN="right">Animated Letters</DIV></TD></TR></TABLE>
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 19:07:22 IST
|
|
|
 sinx =t cosx dx/2 sinx = dt dx = (2dt sinx)/cosx dx = 2dt.t/ (1-t4)  sinx .dx = t. 2dt.t/(1-t 4) =  2t 2dt/(1-t 4) resolve into partial fractions and then integrate if u found ma solution useful plzzzzzzz rate me...... i'll work it out and post the solution soon cheeeers
|
dbznfreak---watchin episodes for 6 yrs--movin on to dbgt
<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
<DIV ALIGN="right">Animated Letters</DIV></TD></TR></TABLE>
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 19:07:51 IST
|
|
|
hay, it is y=sinx^1/2 ¬ y=sinx
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 19:08:29 IST
|
|
|
okay,i got it
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 19:11:41 IST
|
|
|
can u post ur solution more clearly vineetnsb i'm not able to understand ur solution
|
dbznfreak---watchin episodes for 6 yrs--movin on to dbgt
<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
<DIV ALIGN="right">Animated Letters</DIV></TD></TR></TABLE>
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 20:08:34 IST
|
|
|
First of all
 sin x is not a integrable function at all u can check any book or consult with the experts
on integrating as shown above 1 gets some answer but on differentiating again you don't get back  sin x
|
The difference between genius and stupidity is that genius has its limits.
~ Albert Einstein |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Mar 2007 21:05:46 IST
|
|
|
The function is not integrable as far as Syllabus upto class XII CBSE is concerned
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
5 Mar 2007 16:40:56 IST
|
|
|
dude but try integrating tht function u'll never get the answer
syllabus is not wat is concerned here the unslovability of integral matter u cannot integrate sqrt sinx indefinitely
the above solution is also wrong
after substituion it should b
sinx =t
cosx = ] 1-t4
sin x = 2t2 dt/( 1-t4 )
|
The difference between genius and stupidity is that genius has its limits.
~ Albert Einstein |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
7 Mar 2007 17:49:44 IST
|
|
|
Well.. yes.. it is not integrable.... within the limits of theorems we have read...
if you r interested in research, you may try to integrate using complex no.s (although better do it after JEE... its not in syllabus)
|
Sudeep Kumar
(B tech, IITd)
|
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}
2
