Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 27 May 2015, 18:53

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Which of X, X^2, and 1/X has the least value? 1). X>0 2).

Author Message
TAGS:
VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 50 [0], given: 0

Which of X, X^2, and 1/X has the least value? 1). X>0 2). [#permalink]  04 Feb 2006, 22:05
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Which of X, X^2, and 1/X has the least value?

1). X>0
2). X< 1
_________________

Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...

VP
Joined: 21 Sep 2003
Posts: 1066
Location: USA
Followers: 3

Kudos [?]: 39 [0], given: 0

C?

1) x>0 INSUFF

x = 0.5 => x^2 = 0.25 & 1/x = 2 (x^2 has least value)
x = 2 => x ^2 = 4 & 1/x = 0.5 (1/x has least value)

2) x < 1

x = 0.5 => x^2 = 0.25 & 1/x = 2 (x^2 has least value)
x = -2 => x^2 = 4 , 1/x = -0.5 (1/x has least val)

Combining (1) & (2)

0 <x < 1
For this range, always
x^2 < x < 1/x

Hence (I think) C.
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

Last edited by giddi77 on 04 Feb 2006, 22:16, edited 1 time in total.
Director
Joined: 17 Oct 2005
Posts: 940
Followers: 1

Kudos [?]: 64 [0], given: 0

Re: DS: Which has a least value? [#permalink]  04 Feb 2006, 22:16
TeHCM wrote:
Which of X, X^2, and 1/X has the least value?

1). X>0
2). X< 1

I- insuff, ie x=1

II-inusff, x=.5, =-1

both-suff

C
Senior Manager
Joined: 05 Jan 2006
Posts: 383
Followers: 1

Kudos [?]: 32 [0], given: 0

Answer is C... same calculation as giddi... hence not typing it again...
Similar topics Replies Last post
Similar
Topics:
1 What is the value of x^2 + 1/x^2 ? 6 24 Mar 2015, 03:32
4 If x > 0, what is the least possible value for x + 1/x ? 4 20 Oct 2014, 06:09
14 If y= (x-1)(x+2), then what is the least possible value of y 9 07 Jul 2013, 06:39
If x > 0, what is the least possible value for x + 1/x 8 10 Apr 2006, 10:45
Is x negative ? (1) n^3(1-x^2) > 0 (2) x^2 - 1 > 0 6 06 Mar 2006, 13:53
Display posts from previous: Sort by

# Which of X, X^2, and 1/X has the least value? 1). X>0 2).

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.