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Inequality and Exponent/Power problem.

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Inequality and Exponent/Power problem.  [#permalink]

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New post 09 Apr 2019, 01:57
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Question Stats:

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If a, b, c, and d are integers and ab^2c^3d^4 > 0, which of the following must be positive? I. a^2cd
II. bc^4d
III.a^3c^3d^2

A. I only
B. II only
C. III only
D. I and III
E. I, II, and III

Please give detailed solution in comments.

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Posts: 55271
Re: Inequality and Exponent/Power problem.  [#permalink]

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New post 09 Apr 2019, 02:07
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Aseemsharma710 wrote:
If a, b, c, and d are integers and ab^2c^3d^4 > 0, which of the following must be positive? I. a^2cd
II. bc^4d
III.a^3c^3d^2

A. I only
B. II only
C. III only
D. I and III
E. I, II, and III

Please give detailed solution in comments.

Posted from my mobile device


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Re: Inequality and Exponent/Power problem.   [#permalink] 09 Apr 2019, 02:07
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Inequality and Exponent/Power problem.

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