Binomial Theorem
Binomial Expansion, Coefficients
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Grade None
Question:
The coefficient of x⁶ in the expansion of (1 + x)^10 is:
A. 120
B. 210
C. 252
D. 300
Step-by-Step Solution
Key Concept: Coefficient of xʳ in (1+x)^n is C(n, r).
Step 1: Coefficient of x⁶ = C(10, 6) = 210.
Correct Answer: B
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