If the coeff. of middle term of `(1+x)^20` is `A` and coeff. of middle term of `(1+x)^19` are `B and C` then find the value of `A/(B+C)`

Middle term of (x+1/x)^4 is 6

The middle term of [2x-(1)/(3x)]^(10) is -

Find middle term of (2x+1/(x^2))^18

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

Find middle term of (x+2/(x^2))^17

Find middle term of (x+2/(x^2))^16

Suppose the coefficient of the middle term in the expansion of (1 + x)^(2n) is A and the coefficients of two middle terms in the expansion of (1 + x)^(2n-1) are B and C, then A/(B+C)= _________

Number of Middle terMs in (1+x)^(7)