What is the coefficient of x in the expansion of `(1+x)^n?

Find the coefficient of x^10 in the expansion of (1+x)^20 .

Find the greatest coefficient in the expansion of (1 + x)^16

Find the coefficient of x^10 in the expansion of (2x^2-3/x)^11

If three successive coefficients in the expansion of (1 + x)^n are 220, 495 and 792 respectively, find the value of n

What is the unit of co-efficient of linear expansion.

What is the middle term in the expansion of (1+x)^20?

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

Find the term independent of x in the expansion of (x^3-3/x^2)^15

3rd term in the expansion of (2x+3y)^8

Which term is the greatest term in the expansion of (2+3x)^12 when x=5/6?