If the sum of binomial coefficients of (x + 2) Λ n expansion is 256, then the coefficient of X Λ 6 is 256

If the sum of binomial coefficients of (x + 2) Λ n expansion is 256, then the coefficient of X Λ 6 is 256

The binomial coefficient sum of (x + 2) ∧ n expansion = 2 ^ n = 256 = 2 ^ 8
∴n=8
The coefficient of ∧ x ∧ 6 is C (2,8) × 2 & # 178; = 112
This is my conclusion after meditation,
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In the expansion of (a-b) 10, what is the binomial coefficient of the fourth term?
10 is the square root

.3
Binomial coefficient of the fourth term = C10 = 120
The coefficient of item 4 is - 120

In the expansion of binomial (a + b) ^ 8, what is the largest binomial coefficient?

Just remember that
(a + b) ^ n, when n is an even number, the coefficient of N / 2 + 1 in the expansion is the largest, and the largest is C (n, N / 2)
This problem n = 8, so the maximum is C (8,4) = 70