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# If f^2 g < 0, which of the following must be true?

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If f^2 g < 0, which of the following must be true? [#permalink]  09 Aug 2018, 03:51
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Question Stats:

93% (00:13) correct 6% (01:45) wrong based on 49 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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Joined: 06 Jun 2018
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Re: If f^2 g < 0, which of the following must be true? [#permalink]  09 Aug 2018, 14:01
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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.

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