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Need help on Absolute values - preparation

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Intern
Joined: 29 Nov 2009
Posts: 25

Kudos [?]: 64 [0], given: 3

Location: Bangalore - INDIA
Schools: Duke, NUS,Rutgers
WE 1: Health & Life Science
Need help on Absolute values - preparation [#permalink]

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02 May 2012, 22:25
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Guys,
Need your input as to how to approach absolute values problems. Facing little challenge in understanding the theroy and applying the same to problems
also just wanted to know is |x|always positive? when can this can be negative?
say if a expression says |x-4| > 4 = how can i read this / how can i rewrite this expression....sounds very basic but getting real trouble here...

Kudos [?]: 64 [0], given: 3

VP
Joined: 24 Jul 2011
Posts: 1347

Kudos [?]: 643 [0], given: 20

GMAT 1: 780 Q51 V48
GRE 1: 1540 Q800 V740
Re: Need help on Absolute values - preparation [#permalink]

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02 May 2012, 23:07
Check this out:

math-absolute-value-modulus-86462.html

If you still have doubts, post them back to the forum
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Kudos [?]: 643 [0], given: 20

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Joined: 01 Sep 2010
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Kudos [?]: 9074 [0], given: 1154

Re: Need help on Absolute values - preparation [#permalink]

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03 May 2012, 02:53
http://www.manhattangmat.com/strategy-s ... -value.cfm

thi article is simple amazing...........for me to overcome this difficult topic is to think always to absolute value as a distance point with a key central point. and then move on with different techniques.

If you need, do not esitate to ask
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Math Expert
Joined: 02 Sep 2009
Posts: 41892

Kudos [?]: 129175 [1], given: 12194

Re: Need help on Absolute values - preparation [#permalink]

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03 May 2012, 12:07
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divakarbio7 wrote:
Guys,
Need your input as to how to approach absolute values problems. Facing little challenge in understanding the theroy and applying the same to problems
also just wanted to know is |x|always positive? when can this can be negative?
say if a expression says |x-4| > 4 = how can i read this / how can i rewrite this expression....sounds very basic but getting real trouble here...

Check Absolute Value chapter of Math Book: math-absolute-value-modulus-86462.html

DS questions on absolute value to practice: search.php?search_id=tag&tag_id=37
PS questions on absolute value to practice: search.php?search_id=tag&tag_id=58

Tough absolute value and inequity questions with detailed solutions: inequality-and-absolute-value-questions-from-my-collection-86939.html

Hope it helps.
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Kudos [?]: 129175 [1], given: 12194

Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 7676

Kudos [?]: 17381 [1], given: 232

Location: Pune, India
Re: Need help on Absolute values - preparation [#permalink]

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04 May 2012, 19:01
1
KUDOS
Expert's post
divakarbio7 wrote:
Guys,
Need your input as to how to approach absolute values problems. Facing little challenge in understanding the theroy and applying the same to problems
also just wanted to know is |x|always positive? when can this can be negative?
say if a expression says |x-4| > 4 = how can i read this / how can i rewrite this expression....sounds very basic but getting real trouble here...

It you are still facing problems, check out this post for absolute value fundamentals: http://www.veritasprep.com/blog/2011/01 ... edore-did/
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Kudos [?]: 17381 [1], given: 232

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Joined: 01 Sep 2010
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Kudos [?]: 9074 [0], given: 1154

Re: Need help on Absolute values - preparation [#permalink]

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05 May 2012, 04:40
this is an amazing community. that's it
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Kudos [?]: 9074 [0], given: 1154

Re: Need help on Absolute values - preparation   [#permalink] 05 May 2012, 04:40
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