Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.

Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping
Grade: 12


xd 2 y/dx 2 = (dy/dx) 2 i getting problem insolving ∫1/lnxdx

xd2y/dx2 = (dy/dx)2

i getting problem insolving ∫1/lnxdx

11 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points

Hi manoj jangra


you can put lnx=t


  dx=e^t dt

Now  t-1edt

            now expand the series et

     ∫(1+t+t2/!2+t3/!3+.....)/t dt

     Now intigrate

  =  lnt  +t +t2/2*!2+t3/3*!3.......

   =ln t +∑tk/k*!k      where k =1 to infinity


Please feel free to post as many doubts on our discussion forum as you can. If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly.
 We are all IITians and here to help you in your IIT JEE preparation. All the best manoj.


Askiitians Experts


11 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution

Course Features

  • 51 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions

Ask Experts

Have any Question? Ask Experts
Answer ‘n’ Earn
Attractive Gift
To Win!!! Click Here for details