Question
Mathematics Question on Binomial theorem
If the three successive coefficients in the binomial expansion of (1+x)n are 28,56 and 70 respectively then n equals
A
4
B
6
C
8
D
10
Answer
8
Explanation
Solution
The correct option is (C): 8
If the three successive coefficients in the binomial expansion of (1+x)n are 28,56 and 70 respectively then n equals
4
6
8
10
8
The correct option is (C): 8