defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Binomial Theorem Binomial Expansion
For some n ≠ 10, let the coefficients of the 5th, 6th and 7th terms in the binomial expansion of (1 + x)n+4 be in A.P. Then the largest coefficient in the expansion of (1 + x)n+4 is :
1
70
2
35
3
20
4
10