Question

x^-1 y^-1/ x^-1 + y^-1​

Answer 1

Answer:

$\frac{1}{x+y}$

Step-by-step explanation:

$= \frac{x^{-1} * y^{-1} }{x^{-1} + y^{-1}} \\= \frac{\frac{1}{x} * \frac{1}{y} }{\frac{1}{x} + \frac{1}{y} } \\= \frac{\frac{1}{xy}}{\frac{x + y}{xy} } \\= \frac{1}{x+y}$