Binomial Theorem

1 )

If coefficients of x⁷ and x⁸ are equal in expansion of ( 2 + x/3)ⁿ then n = _______

2 )

The constant term in expansion of ((3x² /2)  -  (1/3x))⁹ , x ≠ 0 is

3 )

Coefficients of middle terms in expansion of (2 – x³/3)⁷ are...

4 )

Middle term in expansion of (2/x – 3xy) is_____

5 )

If middle term is Kx^m in expansion of ( x + 1/x)¹² then m =_____