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If f^2 g < 0, which of the following must be true? [#permalink]
Expert's post 00:00

Question Stats: 90% (00:20) correct 9% (02:07) wrong based on 11 sessions
If$$f^2 g < 0$$, which of the following must be true?

(A)$$f < 0$$

(B) $$g < 0$$

(C) $$fg < 0$$

(D) $$fg > 0$$

(E) $$f^2 < 0$$
[Reveal] Spoiler: OA

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Manager  Joined: 06 Jun 2018
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Re: If f^2 g < 0, which of the following must be true? [#permalink]
Carcass wrote:
If$$f^2 g < 0$$, which of the following must be true?

(A)$$f < 0$$

(B) $$g < 0$$

(C) $$fg < 0$$

(D) $$fg > 0$$

(E) $$f^2 < 0$$

Given
If$$f^2 g < 0$$

As f^2 is always positive g has to be negative.

The best answer is B. Re: If f^2 g < 0, which of the following must be true?   [#permalink] 09 Aug 2018, 14:01
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