In the expansion of `(1+x+x^3+x^4)^10,` the coefficient of `x^4` is `^40 C_4` b. `^10 C_4` c. `210` d. `310`

In the expansion of (1+x+x^(2)+x^(3)+x^(4))^(-2), coefficient of x^(10) is

In the expansion (1+x)^7 , the ratio of the coefficients of x^3 and x^4 is:

In the expansion of [(1+x)/(1-x)]^(2), the coefficient of x^(n) will be 4n b.4n-3 c.4n+1 d.none of these

In the expansion of (x-(1)/(3x^(2)))^(9), the term independent of x is T_(3) b.T_(4) c.T_(5) d.none of these

If the sum of the binomial coefficients in the expansion of (x+ 1/x)^n is 64, then the term independent of x is equal to (A) 10 (B) 20 (C) 30 (D) 40

Find the coefficients of x^4 in the expansion of (1+x+x^2)^3