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Re: If mn < 0 and k/m + l/n < mn, which of the following must be true? [#permalink]
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AE wrote:
Explain please.



k/m + l/n < mn

It becomes (kn + lm)/mn < mn

We multiplty by mn. Since it is is a negative number it will reverse the inequality sign.

Becoming kn + lm > (mn)^2

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Re: If mn < 0 and k/m + l/n < mn, which of the following must be true? [#permalink]
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Re: If mn < 0 and k/m + l/n < mn, which of the following must be true? [#permalink]
Hello from the GRE Prep Club BumpBot!

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