If three consecutive coefficients in the expansion of `(1+x)^n` are in the ratio 6:33:110, find n and r.

The coefficient of three consecutive terms in the expansion of (1 + x)^(n ) are in the ratio 1 : 6 : 30. Find n.

The coefficients of three consecutive terms in the expansion of (1+x)^(n) are in the ratio 1:7:42. Find n.

The coefficients of three consecutive terms in the expansion of (1+a)^(n) are in the ratio 1:7:42. Find n.

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

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

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 the coefficients of three consecutive terms in the expansion of (1+x)^(n) are in the ratio 1:7:42, then find the value of n.

If the coefficients of three consecutive terms in the expansion of (1 + x)^(n) are in the ratio 1 : 3 : 5, then show that n = 7.

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 :