MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

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

| x| >1;let y =1+x+x^2+…………to infinity then dy/dx equal to


 

10 years ago

Answers : (2)

student iit
18 Points
							

This is infinite GP where common ration x>1.

S(n)= 1(x^n-1)/(x-1)= x^n-1/x-1

Now use d(u/v)/dx formula to find the drivative.

10 years ago
Badiuddin askIITians.ismu Expert
147 Points
							

hi nitish kumar

| x| >1;

 

 y =1+x+x^2+…………to infinity

 

dy/dx =1+2x+3x2+4x3  .....................infinity

 

clearl for x>1  dy/dx tends to +infinity

 

  and for x<-1  dy/dx  tends to either + infinity or - 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 nitish
 
 

Regards,

Askiitians Experts

Badiuddin

 

10 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

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details