Home
Class 11
MATHS
(n+2)""^(n)C(0)2^(n+1)-(n+1)""^(n)C(1)2^...

`(n+2)""^(n)C_(0)2^(n+1)-(n+1)""^(n)C_(1)2^(n)+n""^(n)C_(2)2^(n-1)`-… is equal to

A

4

B

4n

C

4(n+1)

D

2(n+2)

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

If n=5 , then (""^(n)C_(0))^(2)+(""^(n)C_(1))^(2)+(""^(n)C_(2))^(2)+......+(""^(n)C_(5))^(2) is equal to a)250 b)254 c)245 d)252

Prove that ""^(n)C_(0)""^(n)C_(0)-^(n+1)C_(1) ""^(n)C_(1)+^(n+2)C_(2)""^(n)C_(2)....=(-1)^(n)

If ""^(18)C_(15)+2(""^(18)C_16))+""^(17)C_(16)+1=""^(n)C_(3) , then n is equal to :

The arithmetic mean of ""^(n)C_(0), ""^(n)C_(1), ""^(n)C_(2)…., ""^(n)C_(n) is

Find the sum 3^(n)C_(0)-8^(n)C_(1)+13^(n)C_(2)-18 xx ^(n)C_(3)+…