Question

Urgent!!!! Punctul c)

Answer 1

$\frac{xy}{z} + \frac{xz}{y} + \frac{yz}{x} = \frac{ x^{2} y^{2} + x^{2} z^{2} + y^{2} z^{2} }{xyz} \geq \frac{xy*xz+xy*yz+xz*yz}{xyz}$

am aplicat b)      * inmultire  si mai ai scrierea ca suma de 3 fractii si simplificarea