If the middle term in the expansion of (1 + x)2n is the greatest term, then x lies in the interval
(n - 2, n)
(n - 1, n)
To find the coefficient of x4 in the expansion of , the interval in which the expansion is valid, is
If for some positive integer n, the coefficients of three consecutive terms in the binomial expansion of
(1 + x)n + 5 are in the ratio 5 : 10 : 14, then the largest coefficient in the expansion is :
330
252
792
462