Question

If a, b, c, d and p are distinct real numbers such that (a² + b² + c²)p² – 2 (ab + bc + cd)p + (b² + c² + d²) ≤ 0 then a, b, c, d
(a) are in A. P.
(b) are in G. P.
(c) are in H. P.
(d) satisfy ab = cd
(e) satisfy none of these

Answer 1

I think this is in G. P. Hope this will help you