become expert | help | login
refer a friend - earn nickels!!
 advanced

  Ask & Discuss Questions with Community & Experts

Moderation Team
  500 chars left
Ask experts Expert Question: Great iit qns
Reply Forum Index -> Differential Calculus originally posted here on IIT-JEE / AIEEE community   
Email  
Author Message
Rakesh OFFLINE (1150)

Olaaa!! Perrrfect answer. 204  [269 rates]

Rakesh OFFLINE's Avatar

total posts: 1069    
Offline
let f(t) = ln (t)
then 
     d/dx   {  [x^2 ][ x^3]  f(t) dt }   
 
a) has a value 0 when x = 0
b) has a value 0 when x=1 and x=4/9
c)has a value 9e^2 - 4e when x=e
d) has a differential coefficient 27 e - 8 for x=e
 
Ans  b,c,d
 
please give me a self detailed ans for which i promise to rate you

When there is no hope & everything in dark..........
World says go & Graves say come.........
So never loose hope & Try another way.........


border="0" alt="page counter">
Website Hit Counter







    
HIMANSHU JAIN (376)

Olaaa!! Perrrfect answer. 62  [95 rates]

HIMANSHU JAIN's Avatar

total posts: 270    
Offline
on taking derivative
we get
3x2(lnx3) - 2x(lnx2)          [using lebinitz rule]
= [9x2 - 4x]lnx
now it's clear to match ur options.

Himanshu Jain
P.E.C.
http://jainhim.blogspot.com/
  this reply:   10 points  (with Olaaa!! Perrrfect answer.   in 2   votes   )     [?]
 
You have to be logged on to rate
  
Neeraj Agarwal (895)

Olaaa!! Perrrfect answer. 137  [242 rates]

Neeraj Agarwal's Avatar

total posts: 2039    
Offline
absolutely!
  this reply:   0 points  (with Olaaa!! Perrrfect answer.   in 0   votes   )     [?]
 
You have to be logged on to rate
  
Amar Gupta (610)

Forum Expert

Olaaa!! Perrrfect answer. 106  [146 rates]

Amar Gupta's Avatar

total posts: 363    
Offline
well done him26.89
  this reply:   0 points  (with Olaaa!! Perrrfect answer.   in 0   votes   )     [?]
 
You have to be logged on to rate
  
Devesh Mittal (107)

Olaaa!! Perrrfect answer. 19  [25 rates]

Devesh Mittal's Avatar

total posts: 231    
Offline
 

devesh

La parada de tettas
  this reply:   0 points  (with Olaaa!! Perrrfect answer.   in 0   votes   )     [?]
 
You have to be logged on to rate
  
 
reply Forum Index -> Differential Calculus
Go to: 
Sponsored Links
Free Exam Papers ?
unit, model, solved papers
IIT, Medical, CBSE. Get Free Now!

vriti.com/Scholarship