If the coefficients of `(2r+4)^(th)` term and `(r-2)^(th)` term in the expansion of `(1+x)^(18)` are equal then `r=`

If the binomial coefficient of (2r+4)^(th) term and (r-2)^(th) term in the expansion of (1+x)^(21) are equal, then the value of r equals

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

If the coefficients of (2r+1)th term and (r+2)th term in the expansion of (1+x)^(48) are equal,find r.

if the coefficient of (2r+1) th term and (r+2) th term in the expansion of (1+x)^(43) are equal then r=?

Given positive integers r>1,n>2,n being even and the coefficient of (3r)th term and (r+2)th term in the expansion of (1+x)^(2n) are equal; find r

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