Q139. If x, y, and z are positive real numbers (x, y, z > 0), what is the minimum value of the expression x2/y + y2/z + z2/x?Mathematics — Algebra — Question 139 of 194A. 1B. 3C. x + y + zD. 0Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →