If three successive coefficients in the expansion of `(1+x)^n` be 220,495 and 972, find n.

If three consecutive coefficients in the expansion of (1+x)^n be 165,330 and 462, find n and the position of the coefficeint.

If three consecutive coefficients in the expansion of (1+x)^(n) be 56,70 and 56, find n and the position of the coefficients.

The greatest coefficient in the expansion of (1+x)^(2n) is

If the three consecutive coefficients in the expansion of (1+x)^(n) are 28,56, and 70 ,then the value of n is.

If there are three successive coefficients in the expansion of (1+2x)^(n) which are in the ratio 1:4:10 , then 'n' is equal to :

If a,b and c are three consecutive coefficients terms in the expansion of (1+x)^(n), then find n.

What is the sum of the coefficients in the expansion of (1+x)^(n) ?