If in the expansion of `(1+x)^43` the coefficient of `(2r+1)`th term is equal to the coefficietn of `(r+2)` th term, find r.

In the expansion of (1+x)^(43) ,the co-efficients of (2r+1)th and (r+2)th terms are equal. Find r.

If in the expansion of (1 + x)^(20) , the coefficients of r^(th) and (r +4)^(th) terms are equal, then the value of r,is

If in the expansion of (1+x)^(15), the coefficients of (r+3)^(th) and (r-1)^(th) terms are equal then the value of r is a.5 b.6 c.4 d.

In the expansion of (1+a)^(34) , if the cofficient of (r-5)^(th) and (2r-1)^(th) terms are equal , then find value of r.

In the expansion of (X+y)^(n) , the coefficients of the 17th and the 13th terms equal. Find the numbher of term in the expansion

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