If the coefficients of rth, (r+ 1)th and (r + 2)th terms in
the expansion of `(1 + x)^(1//4)` are in AP, then r is /are

Let n be a positive integer . If the cofficients of rth (r +1) th and (r +2)th terms in the expansion of (1 + x)^(n) are in AP, then find the relation between n and r .

Let n be a positive integer . If the cofficients of rth (r +1) th and (r +2)th terms in the expansion of (1 + x)^(n) are in AP, then find the relation between n and r .

If the coefficients of rth,(r+1) th,and (r+2) th terms in the expansion of (1+x)^(14) are in A.P.then r is/are a.5 b.11 c.10d.9

If the coefficients of the rth, (r +1)th and (r + 2)th terms in the binomial expansion of (1 + y)^(m) are in A.P., then m and r satisfy the equation

If the coefficients of r^("th"),(r+1)^("th")and(r+2)^("th") terms in the expansion of (1+x)^(14) are in A.P ., then r is /are -

If the coefficients of r^(th) , (r+1)^(t h) and (r+2)^(th ) terms in the expansion of (1+x)^(14) are in A.P, then the value of r is