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# For all x, the expression x~ is defined as x^2/2a^2. What is the value

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Senior Manager
Joined: 25 Dec 2018
Posts: 296
Location: India
Concentration: General Management, Finance
GMAT Date: 02-18-2019
GPA: 3.4
WE: Engineering (Consulting)
For all x, the expression x~ is defined as x^2/2a^2. What is the value  [#permalink]

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10 Apr 2019, 11:06
1
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Difficulty:

35% (medium)

Question Stats:

100% (01:36) correct 0% (00:00) wrong based on 8 sessions

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For all x, the expression x~ is defined as x^2/2a^2. What is the value of 5~ ?

(1) 2~ = 4

(2) 3~ = 9
Intern
Joined: 26 Mar 2019
Posts: 6
Re: For all x, the expression x~ is defined as x^2/2a^2. What is the value  [#permalink]

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10 Apr 2019, 23:46
statement1: x=2 so a=root of (1/2). 5~ =25. so statement 1 is sufficient to ans
statement 2: x=3 so same as above . statement 2 is sufficient to ans

option D ans
Re: For all x, the expression x~ is defined as x^2/2a^2. What is the value   [#permalink] 10 Apr 2019, 23:46
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# For all x, the expression x~ is defined as x^2/2a^2. What is the value

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