Question

Go through the attachment and Pls Give answer with explanation!!​

Answer 1

Answer:

(c) 1/xy

Step-by-step explanation:

We know that,

${a}^{ - 1} = \frac{1}{a}$

${(x + y})^{ - 1} \times ( {x}^{ - 1} + {y}^{ - 1} ) \\ \\ = \frac{1}{ {(x + y)}} \times ( \frac{1}{x} + \frac{1}{y} ) \\ \\by \: \: \: taking \: \: \: lcm \: \\ \\ = \frac{1}{x + y} \times ( \frac{x + y}{xy}) \: \: \: \: \\ \\ = \frac{1}{xy} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

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