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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] New post   Updated on: 15 Jul 2019, 03:01
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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

Source: Nova GMAT
Difficulty Level: 500
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C

Originally posted by fitzpratik on 02 Sep 2017, 05:28.
Last edited by Sajjad1994 on 15 Jul 2019, 03:01, edited 1 time in total.
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Re: Define x* by the equation x* = π/x. Then ((- π)*)* = [#permalink] New post   02 Sep 2017, 05:36
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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


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

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


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

Answer: C.


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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Define x* by the equation x* = /x. Then ((- )*)* = [#permalink] New post   31 Oct 2022, 22:19
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Given that x* = π/x and we need to find the value of ((- π)*)*

(- π)* = π/-π = -1

=> ((- π)*)* = (-1)* = π/-1 = -π

So, Answer will be C
Hope it helps!

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Re: Define x* by the equation x* = /x. Then ((- )*)* = [#permalink] New post   05 Dec 2023, 07:19
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Re: Define x* by the equation x* = /x. Then ((- )*)* = [#permalink]
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