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

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

In the binomial expansion of (1+x)^(43) , the coefficients of the (2r+1) th and (r+2) th terms are equal. Then 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

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.

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

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.

If in the expansion of (1+x)^(43) ,the coefficient of (3r+1)th term be equal to the coefficient of (3r+2)th term . Find show these that , r = 7 .

In the expansion of (1+x)^(10) the coefficient of (2 r+1)^(th) term is equal to the coefficient of (4 r+5)^(th) term then r=