InterviewSolution
Saved Bookmarks
| 1. |
Let x, y, z be positive reals. Which of the following implies x = y = z?(I) x3 + y3 + z3 = 3xyz(II) x3 + y2 z + yz2 = 3xyz(III) x3 + y2 z + z2 x = 3xyz(IV) (x + y + z)3 = 27xyz |
|
Answer» Let x, y, z be positive reals. Which of the following implies x = y = z? (I) x3 + y3 + z3 = 3xyz (II) x3 + y2 z + yz2 = 3xyz (III) x3 + y2 z + z2 x = 3xyz (IV) (x + y + z)3 = 27xyz |
|