Math, asked by Swaza2397, 7 months ago

₂n
If (1 + 2 x + x²)ⁿ = ∑ aᵣ xʳ, then aᵣ
ʳ ⁼ ⁰
(a) (ⁿCᵣ)² (b) ⁿCᵣ . ⁿCᵣ₊₁
(c) ²ⁿCᵣ (d) ²ⁿCᵣ₊₁

Answers

Answered by swayamkumar987

0

Answer:

c2r is the correct answer

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