Answer:
[tex] \frac{x {y}^{ - 1} }{2 {x}^{0}{y}^{ - 2} } \\ = \frac{x {y}^{2} }{2 \times 1 \times y} \\ = \frac{x {y}^{2} }{2y} \\ = \frac{xy}{2} [/tex]
