If `x` is positive, the first negative term in the expansion of `(1 + x)^(27/5` is

If (r+1)t h term is the first negative term in the expansion of (1+x)^(7//2), then find the value of rdot

The middle term in the expansion of (10/x + x/10)^(10) is

Find the constant term in the expansion of (x-1//x)^6dot

Find the middle terms in the expansion of (x+y)^(7) .

The constant term in the expansion of (x -2/x^(2))^(9) is

Find the middle term in the expansion of (3 - 1/(2x))^(10)

Find the fourth term in the expansion of (1-2x)^(3//2)""dot

Find the middle term in the expansion of (x+y)^(6) .