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)^("th") and (r+2)^("nd") terms in the expansion of (1+x)^(n) are in A.P. then show that n^(2)-(4r+1)n+4r^(2)-2=0.

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

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

If the coefficient of r^(th) ,( r +1)^(th) " and " (r +2)^(th) terms in the expansion of (1+x)^n are in A.P then show that n^2 - (4r +1)n + 4r^2 - 2 =0

If the coefficient of r^(th) ,( r +1)^(th) " and " (r +2)^(th) terms in the expansion of (1+x)^n are in A.P then show that n^2 - (4r +1)n + 4r^2 - 2 =0

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

If the coefficients of r^(th) , (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