If two consecutive terms in the expansion of `(x+a)^n` are equal to where n is a positive integer then `((n+1)a)/(x+a)` is

Write the middle term in the expansion of : (1+x)^(2n) , where n is a positive integer.

Write the expansion of (a+b)^n , where n is any positive integer.

Solve (x - 1)^n =x^n , where n is a positive integer.

How many terms are there in the expansion of (1+x)^2n (n is a positive integer)?

Find the co-efficient of 1/x of the expansion of (1+x)^n(1+1/x)^n where n is a positive integer.

If fourth term in the expansion of (1-(x)/(n))^(n) equals (7)/(8) when x=-2 and n is a positive integer,calculate n.

If the first three terms in the expansion of (1 -ax)^n where n is a positive integer are 1,-4x and 7x^2 respectively then a =

If the first three terms in the expansion of (1 -ax)^n where n is a positive integer are 1,-4x and 7x^2 respectively then a =

Solve (x-1)^(n)=x^(n), where n is a positive integer.