In the expansion of `[2-2x+ x^2]^9` (A) Number of distinct terms is 10 (C) Sum of coefficients is 1 (B) Number of distinct terms is 55 (D) Coefficient of `x^4` is 97

In the expansion of (x^(2)+1+(1)/(x^(2)))^(n),n in N, (a)number of terms is 2n+1 (b)coefficient of constant terms is 2^(n-1) (c)coefficient of x^(2n-1)isn (d)coefficient of x^(2) in n

In the expansion of (x^2+1+1/(x^2))^n ,n in N , (a)number of terms is 2n+1 (b)coefficient of constant terms is 2^(n-1) (c)coefficient of x^(2n-1)i sn (d)coefficient of x^2 in n

In the expansion of (1 + x)^5 , the sum of the coefficients of the terms is

Find the number of distinct terms in the expansion (x+ y + z)^10

Find the number of distinct terms in the expansion (x + y -z)^16

Find the number of distinct terms in the expansion of (x+(2)/(x)+1)^(20)

The number of distinct terms in the expansion of (1+ 3x + 3x^(2) + x^(3))^(7) is

The sum of the coefficients of the first 10 terms in the expansion of (1-x)^(-3) is