Find the binomial expansion of `(1 + x)^(-2)`

The sum of the coefficients in the binomial expansion of (1/x + 2x)^(6) is equal to

The coeffiicent of x^(n) in the binomial expansion of ( 1-x)^(-2) is

The coeffiicent of x^(n) in the binomial expansion of ( 1-x)^(-2) is

Binomial expansion of (x+1)^(6)

Find the sum of the coefficient of to middle terms in the binomial expansion of (1+x)^(2n-1)

Find the sum of the coefficient of two middle terms in the binomial expansion of (1+x)^(2n-1)

Find the sum of the coefficient of to middle terms in the binomial expansion of (1+x)^(2n-1)

Find the 10th term in the binomial expansion of (2x^2+1/x)^(12)dot

Find the 10th term in the binomial expansion of (2x^2+1/x)^(12)dot

Prove that the coefficient of x^(n) in the binomial expansion of (1+x)^(2n) is twice the coefficient of x^(n) in the binomial expansion of (1+x)^(2n-1) .