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# Define x* by the equation x* = π/x. Then ((–π)*)* =

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Joined: 01 Sep 2010
Posts: 3397
Define x* by the equation x* = π/x. Then ((–π)*)* =  [#permalink]

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04 Apr 2018, 13:48
Top Contributor
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Difficulty:

(N/A)

Question Stats:

75% (00:53) correct 25% (00:00) wrong based on 4 sessions

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Define $$x^*$$ by the equation $$x^* = \frac{\pi}{x}$$. Then $$((-\pi)^*)^*$$ =

A. $$\frac{-1}{\pi}$$

B. $$\frac{-1}{2}$$

C. $$- \pi$$

D. $$\frac{1}{\pi}$$

E. $$\pi$$

Kudos for the right answer and solution

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Math Expert
Joined: 02 Sep 2009
Posts: 58340
Re: Define x* by the equation x* = π/x. Then ((–π)*)* =  [#permalink]

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04 Apr 2018, 13:57
carcass wrote:
Define $$x^*$$ by the equation $$x^* = \frac{\pi}{x}$$. Then $$((-\pi)^*)^*$$ =

A. $$\frac{-1}{\pi}$$

B. $$\frac{-1}{2}$$

C. $$- \pi$$

D. $$\frac{1}{\pi}$$

E. $$\pi$$

Kudos for the right answer and solution

Check here: https://gmatclub.com/forum/define-x-by- ... 48454.html
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Re: Define x* by the equation x* = π/x. Then ((–π)*)* =   [#permalink] 04 Apr 2018, 13:57
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