The coefficient of the 8th term in the expansion of `(1+x)^10` is

The. coefficient of 10th term in the expansion of (x+1/x)^20

Consider the following statements I. The coefficient of the middle term in the expansion of (1+x)^(8) is equal to the middle of (x+(1)/(x))^(8) . II. The coefficient of the middle term in the expansion of (1+x)^(8) is less than the coefficient of the fifth term in the expansion of (1+x)^(7) . Which of the above statements is/are correct ?

The coefficient of the 10th term in ,the expansion of (x-(1)/(x))^(20) is -

What is the coefficient of the (r+1)^(th) term in the expansion of (1+x)^n ?

prove that the coefficient of the (r +1)th term in the expansion of (1+x)^(n) is equal to the sum of the coefficients of the rth and (r+1)th terms in the expansion of (1+x)^(n-1)

If the coefficient of p^(th) term in the expansion of (1+x)^(n) is p and the coefficient of (p+1)^(th) term is q then n=