MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

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

If (1+x+x2)6n=a0+a1x+....then


(a0+a3+a6+.....)=


(a)36n-1


(B)36n+1


(c)36n-1


(D)36n+1-1

7 years ago

Answers : (1)

askiitian expert akshay singh
8 Points
										

HI VAIBHAV,


You can do this problem using a short trick,which is used generally to solve objective problems involving n,this will save ur time and u'll get the correct answer.Do onething put n=1/3,so expression becomes (1+x+x2)2 =1+2x+3x2 +2x3+x4 now a0+a3=1+2=3...........now solve all the answers for n=1/3 u'll find that option (a)36n-1=3 is the correct answer.

7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete AIPMT/AIIMS Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 13,000 off
USE CODE: JEE1
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 13,000 off
USE CODE: JEE1

Ask Experts

Have any Question? Ask Experts

Post Question

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