Question

Evaluate each of the following expressions for x = -2, y = -1, z = 3:
(I) (x/y) + (y/z) + (z/x)​

Answer 1

Step-by-step explanation:

$( \frac{x}{y} ) + ( \frac{y}{z} ) + ( \frac{z}{x} ) \\ = ( \frac{ - 2}{ - 1} ) + ( \frac{ - 1}{3} ) + ( \frac{3}{ - 1} ) \\ = 2 + \frac{ - 1}{3} + ( - 3) \\ = \frac{ - 1}{3} - 1 \\ = \frac{ - 1 - 3}{3} \\ = \frac{ - 4}{3}$