Find the greatest coefficient in the expansion of `(1+2x//3)^(15)dot` .

if the sum of coefficients in the expansion of (x-2y+3z)^(n) is 128 ,then find the greatest coefficients in the expansion of (1+x)^(n)

The greatest coefficient in the expansion of (1+x)^(2n) is

The greatest coefficient in the expansion of (1 + x)^(10) , is

The greatest coefficient in the expansion of (1+x)^(2n+2) is

Find the greatest coefficient in the expansion of (a + b + c+ d)^(15) .