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: 11
        The sum of n terms of an ap is n^2 then find the common difference
one year ago

Answers : (1)

Arun
22807 Points
							
Dear Ronit
 
S1 = T1 = 1² = 1
 
S2 = T1 + T2 = 2² = 4
 
S3 = T1 + T2 + T3 = 3² = 9
 
T2 = S2 - S1 = 3
 
Hence T2 - T1 = 3-1 = 2
 
T3 = S3 - S2 = 9-4 = 5
 
T3 - T2 = 2
 
Hence this will form an A.P. with common difference d = 2
 
 
Regards
Arun (askIITians forum expert)
one year 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

  • 101 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