a,b,c,d are in GP
For the statements which are (is) true?
(i) (a-b)2, (b-c)2, (c-d)2 are in GP
(ii) a2 + b2 + c2, ab + bc + ca, b2 + c2 + d2 are in GP
(iii) a2-b2, b2-c2, c2-d2 are in GP
(iv) 1/(a3+b3), 1/(b3+c3), 1/(c3+d3) are in GP
-
UP 0 DOWN 0 0 0
