Find `a` if the 7th and 18th terms of the expansion `(2+a)^(50)` are equal.

Find a if 17 th and 18 th terms in the expansion of (2+a)^(50) are equal.

If the 17th and 18th terms in the expansion of (2+a)^(50) are equal , find the value of a.

Find the value of a,if the 17 th and 18 th term is the equation of (2+a)^(50) are equal.

Value of a if 17th and 18 th terms in the expansion of (2+a)^(50) are equal is

If the coefficients of (r-5)^(th) and (2r-1)^(th) terms of the expansion (1+x)^(34) are equal, find r.

Find n if the coefficients of 4th the 13th terms in the expansion of (a+b)^n are equal.

If coefficients of r th and (r + 1)th term in the expansion of (3 + 2x)^(74) are equal, then r is equal to:

If the coefficients of (2r+4)th and (r-2)th terms in the expansion of (1+x)^(18) are equal.Find r?

If the coefficient of (3r + 4)th term and (2r - 2)th term in the expansion of (1 + x)^(20) are equal then r is equal to,

If the coefficent of (r-5)th and (2r-1)th terms in the expansion of (1+x)^(34) are equal , find the value of r.