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Find the coefficient of x^k in 1+ (1+x) + (1+x)^2 + (1+x)^3.....(1+x)^n (0≤k≤n)

Find the coefficient of x^k in 1+ (1+x) + (1+x)^2 + (1+x)^3.....(1+x)^n (0≤k≤n)

Grade:11

1 Answers

Arun
25750 Points
6 years ago
Dear Aditya
 
Remember that coefficient of x^k will be
(n+1)C(k+1)
 
Regards
Arun (askIITians forum expert)

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