Find the `r^th` term from the end in the expansion of `(x + a)^n`.

Prove that : Find the 4^("th") term from the end in the expansion (2a+5b)^(8) .

Prove that : Find the 3^("rd") term from the end in the expansion of (x^(-2//3)-(3)/(x^(2)))^(8).

If the ratio of the 7th term from the beginning to the 7th term from the end in the expansion of (sqrt2+(1)/(sqrt3))^x is 1/6 , then x is

If the 5th term is 4 times the 4th term and the 4th term is 6 times the 3rd in the expansion of (1+x)^n then (x,n)=

Find the 6^(th) term in the expansion of ((2x)/3 +(3y)/2) ⁹

The third term from the end in the expansion of ((3x)/(5)-(5)/(2x))^8 is

The (n+1) the term in the expansion of e^(4x) is

Find the general term (r+1)^("th") term in the expansion of (4+5x)^(-3//2)

If the 5th term is the term independent of x in the expansion of (x^(2//3) + 1/x)^n then n =