If a, b, c and d are in G.P., show that,  `(b-c)^(2) + (c-a)^(2)+ (d-b)^(2) = (a-d)^(2)`.
Channel: Doubtnut
Date: 2020-05-09

If a, b, c and d are in G.P., show that,  `(b-c)^(2) + (c-a)^(2)+ (d-b)^(2) = (a-d)^(2)`.