Find the term independent of x in `(x+1/x)^(2n)`

Find the term independent of x in (2x^2-1/x)^12 . Also write its 3^(rd) term.

Find the term independent of x in (3/2x^2- 1/(3x))^9

Find the term independent of x in (6x^(2)-(1)/(7x^(3)))^(10)

Find term independent of x in (x^(2)+(1)/(x^(2))-2)^(10)

Find the term independent of x in (2x^(5)+(1)/(3x^(2)))^(21)

If there is a term independent of x in (x+(1)/(x^(2)))^(n) ,show that it is equal to (n!)/(((n)/(3))!((2n)/(3))!)

Find the term independent of x in the expansion of: (2x-(1)/(x))^(10)

Find the term independent of x in the expansion off the following expression: (x-(1)/(x^(2)))^(3n)

Find the term independent of x in the expansion off the following expression: (3x-(2)/(2x^(2)))^(3n)

Find the term independent of x in the expression (x-(1)/(x))^(14)