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Binomial Theorem
Binomial Expansion, Coefficients
jee_main_2026_april_8_shift_2
Grade None

Question:

The coefficient of x⁷ in the expansion of (1 + x)^11 is:
A. 165
B. 330
C. 462
D. 495

Step-by-Step Solution

Key Concept: Coefficient of xʳ in (1+x)^n is C(n, r).
Step 1: Coefficient of x⁷ = C(11, 7) = C(11, 4) = 330.
Correct Answer: B
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