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If x and y are positive real numbers the...

If x and y are positive real numbers then which the following is CORRECT?

A

`x gt yimplies-xgt-y`

B

`xgtyimplies-xlt-y`

C

`xgty=1/xgt1/y`

D

`xgtyimplies1/xlt(-1)/y`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the given information and options based on the properties of inequalities and the fact that \( x \) and \( y \) are positive real numbers. ### Step-by-Step Solution: 1. **Understanding the Given Information**: We know that \( x \) and \( y \) are positive real numbers. This means: \[ x > 0 \quad \text{and} \quad y > 0 \] 2. **Analyzing the Inequality**: We are given that \( x > y \). This means that \( x \) is greater than \( y \). 3. **Multiplying by -1**: If we multiply both sides of the inequality \( x > y \) by -1, we need to remember that multiplying or dividing an inequality by a negative number reverses the direction of the inequality. Therefore: \[ -x < -y \] 4. **Conclusion**: From the above step, we conclude that if \( x > y \), then it follows that \( -x < -y \). This means that the inequality holds true when we multiply by -1, but the relationship is reversed. 5. **Identifying the Correct Option**: We need to look for an option that states \( -x < -y \) or something equivalent. Based on the analysis, we find that this corresponds to option 2. ### Final Answer: The correct statement is option 2.
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