The middle term of `(1-3x+3x^2-x^3)^(2n)` is

The middle terms of (3x^2+5//x^3)^11 are

The middle term of (x-(1)/(x))^(2n+1) is

The middle term in the expansion of (1-3x+3x^2-x^3)^(2n) is

The middle term in the expansion of (1-3x+3x^2-x^3)^(2n) is (a) ((6n)!x^(n))/((3n)!(3n)!) (b) ((6n)!x^(3n))/((3n)!) (c) ((6n)!)/((3n)!(3n)!)(-x)^(3n) (d) none of these

Show that coefficient of the middle term of (1+ x)^(2n) is equal to the sum of the coefficients of two middle terms of (1+x)^(2n-1) .

The middle term in the expansion of (1-3x+3x^(2)-x^(3))^(2n) is

The middle term of (x-1/x)^(2n+1) is

The middle term in (2x-3y)^12 is

If the middle term of (1+x)^ (2n) is (1.3.5….(2n-1)k)/(n!) then k=