If the four consecutive coefficients in any binomial expansion be `a,b,c and d` then (A) `(a+b)/a
Channel: Doubtnut
Date: 12/04/2020

If the four consecutive coefficients in any binomial expansion be `a,b,c and d` then (A) `(a+b)/a,(b+c)/b,(c+d)/c` are in H.P. (B) `(bc+ad)(b-c)=2(ac^2-b^2d)` (C) `b/a,c/b,d/c` are in A.P. (D) none of these