Simplify (\(\frac{1}{x^{-1}} + \frac{1}{y^{-1}}\))-1.... Question 15900

Simplify (\(\frac{1}{x^{-1}} + \frac{1}{y^{-1}}\))^-1

\(\frac{x}{y}\)

(xy)^-1

Correct answer is C

Simplify (\(\frac{1}{x^{-1}} + \frac{1}{y^{-1}}\))^-1 = (\(\frac{1}{x^{-1}} + \frac{1}{y^{-1}}\))^-1

= (x + y)^-1 = \(\frac{(x)}{y}\)

= \(\frac{x}{y}\)

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