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

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Define x* by the equation x* = π/x. Then ((- π)*)* =  [#permalink]

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02 Sep 2017, 05:28
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00:00

Difficulty:

5% (low)

Question Stats:

93% (01:08) correct 7% (00:50) wrong based on 39 sessions

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

A. -1/π

B. -1/2

C. -π

D. 1/π

E. π

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Chasing the dragon
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Joined: 02 Sep 2009
Posts: 54376
Re: Define x* by the equation x* = π/x. Then ((- π)*)* =  [#permalink]

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02 Sep 2017, 05:36
fitzpratik wrote:
Define x* by the equation x* = π/x. Then ((- π)*)* =

A. -1/π

B. -1/2

C. -π

D. 1/π

E. π

$$((- π)*)* = (\frac{π}{(-π)})* = (-1)* = \frac{π}{(-1)} = -π$$.

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Re: Define x* by the equation x* = π/x. Then ((- π)*)* =  [#permalink]

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02 Sep 2017, 05:37
Bunuel wrote:
fitzpratik wrote:
Define x* by the equation x* = π/x. Then ((- π)*)* =

A. -1/π

B. -1/2

C. -π

D. 1/π

E. π

$$((- π)*)* = (\frac{π}{(-π)})* = (-1)* = \frac{π}{(-1)} = -π$$.

Similar question: https://gmatclub.com/forum/define-x-by- ... 24916.html

Check function questions in our Special Questions Directory:

Operations/functions defining algebraic/arithmetic expressions
Symbols Representing Arithmetic Operation
Rounding Functions
Various Functions

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Re: Define x* by the equation x* = π/x. Then ((- π)*)* =   [#permalink] 02 Sep 2017, 05:37
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