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Solving Equations Involving Absolute Number

If x and y ar...

Question

If x and y are positive real numbers, then which of the following is correct?

A

$x > y \Rightarrow - x > - y$

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B

$x > y \Rightarrow - x < - y$

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C

$x > y \Rightarrow \frac{1}{x} > \frac{1}{y}$

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D

$x > y \Rightarrow \frac{1}{x} > \frac{- 1}{y}$

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Solution

The correct option is B
$x > y \Rightarrow - x < - y$

$x > y \Rightarrow - x < - y$

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Solving Equations Involving Absolute Number

Standard IX Mathematics

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