Question

n
Let (1 + x)ⁿ = ∑ Cᵣ xʳ, and
ʳ ⁼ ⁰
C₁/C₀ + C₂/C₁ + C₃/C₂ + ...+ Cn/Cn₋₁ = (1/k) n (n+1),
then the value of k, is
(a) 1/2 (b) 2 - (c) 1/3 (d) 3

Answer 1

Answer:

c option is the correct answer