A,b,c are in ap, b,c,d are in gp and c,d,e are in hp. what is the relation among a,c,d?

Since a, b, c are in AP 2b = a+c …(i) Since b, c, d are in GP c2 = bd …(ii) Since c, d, e are in HP 2/d = 1/c + 1/e 2/d = (c+e)/ce …(iii) From (ii), d = c2/b Substitute d i...