CoefficientMediumQuestion 280006
Question
The coefficient of x³ in (1 + x)⁷ is:
- A35Correct
- B21
- C7
- D1
Correct answer
35
Explanation
T_{r+1} = ⁷Cᵣ xʳ. For x³: r = 3. Coefficient = ⁷C₃ = 35.
JEE Mathematics · Medium
Binomial Theorem: Coefficient MCQ
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