InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
if a,b, c, d and p are distinct real number such that `(a^(2) + b^(2) + c^(2))p^(2) - 2p (ab + bc + cd) + (b^(2) + c^(2) + d^(2)) lt 0` then a, b, c, d are inA. A.P.B. G.P.C. H.P.D. None of these |
|
Answer» Correct Answer - B Here, the given condition `(a^(2) + b^(2) + c^(2)) p^(2) - 2p (ab + bc+ ca) + b^(2) + c^(2) + d^(2) lt 0` `hArr (p - b)^(2) + (bp - c)^(2) + (cp - d)^(2) lt 0` `:.` a square can not be negative `:. ap - b = 0, bc - c = 0, cp - d = 0 hArr p = (b)/(a) = (c)/(b) = (d)/(c) hArr a, b, c, d` are in G.P. |
|