In the expansion of `(e^(x)-1-x)/(x^(2))` is ascending powers of x the fourth term is

The expansion of log.(1+x+x^(2))/(1-x+x^(2)) as ascending powers of x is

If |x|lt1 then the coefficient of x^(3) in the expansion of log(1+x+x^(2)) is ascending power of x is

If |x|lt1 then the coefficient of x^(3) in the expansion of log(1+x+x^(2)) is ascending power of x is

Expand (1)/(5+x) in ascending powers of x .

The 4^(th) term in the expansion of (e^(x) -1-x)/x^2 in ascending power of x , is

If |x|lt1 , the coefficient of x^(3) in the expansion of log(1+x+x^(2)) in ascending power of x, is

Expand 1/(5+x) in ascending powers of x.

In the expansion of (x^(2) + (1)/(x) )^(n) , the coefficient of the fourth term is equal to the coefficient of the ninth term. Find n and the sixth term of the expansion.