Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 22 May 2013, 17:48
Customize  |  Hide

Search
Register
New posts
Unanswered

EXPONENTIALS Q

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Senior Manager
Senior Manager
User avatar
Joined: 30 Aug 2003
Posts: 335
Location: BACARDIVILLE
Followers: 1

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

GMAT Tests User
EXPONENTIALS Q [#permalink] New post 06 Jan 2004, 19:40
Any idea :shock: Pls include reasoning along with all answer posts.

The value of (2^3/4 + 2^1/2 + 2^1/4 + 1)(2^1/4 - 1)

a. 5
2. 7
3. -1
4. 1
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

GMAT Club Legend
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4441
Followers: 10

Kudos [?]: 81 [0], given: 0

GMAT Tests User
 [#permalink] New post 06 Jan 2004, 19:52
4)

= 2^(3/4+1/4) + [-1][2^3/4] + 2^(1/2+1/4) + [-1][2^1/2] + 2^(1/4+1/4) + [-1][2^1/4] + 2^1/4 - 1
= 2 - 2^3/4 + 2^3/4 - 2^1/2 + 2^1/2 - 2^1/4 + 2^1/4 -1
= 2 - 1
= 1
_________________

Best Regards,

Paul

Senior Manager
Senior Manager
User avatar
Joined: 30 Aug 2003
Posts: 335
Location: BACARDIVILLE
Followers: 1

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

GMAT Tests User
 [#permalink] New post 06 Jan 2004, 19:54
[quote="Paul"]4)

= 2^(3/4+1/4) + [-1][2^3/4] + 2^(1/2+1/4) + [-1][2^1/2] + 2^(1/4+1/4) + [-1][2^1/4] + 2^1/4 - 1
= 2 - 2^3/4 + 2^3/4 - 2^1/2 + 2^1/2 - 2^1/4 + 2^1/4 -1
= 2 - 1
= 1[/quote]



How many minutes did that take you approx?
Is there a short cut?
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

GMAT Club Legend
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4441
Followers: 10

Kudos [?]: 81 [0], given: 0

GMAT Tests User
 [#permalink] New post 06 Jan 2004, 19:57
the time writing took me much longer than doing it. 30 sec to do it
_________________

Best Regards,

Paul

Senior Manager
Senior Manager
User avatar
Joined: 30 Aug 2003
Posts: 335
Location: BACARDIVILLE
Followers: 1

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

GMAT Tests User
 [#permalink] New post 06 Jan 2004, 19:58
I'm thoroughly confused by this problem for some reason.
What exponential rules did your use?
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

GMAT Club Legend
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4441
Followers: 10

Kudos [?]: 81 [0], given: 0

GMAT Tests User
 [#permalink] New post 06 Jan 2004, 20:00
Just know the rule to multiply and add exponents. When same base is multiplied, in this case 2, you can just add up their exponents
_________________

Best Regards,

Paul

Senior Manager
Senior Manager
User avatar
Joined: 30 Aug 2003
Posts: 335
Location: BACARDIVILLE
Followers: 1

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

GMAT Tests User
 [#permalink] New post 06 Jan 2004, 20:06
I made daft mistake.
Cheers
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

  [#permalink] 06 Jan 2004, 20:06
    Similar topics Author Replies Last post
Similar
Topics:
 New posts Ps: Exponential Macedon 4 07 Oct 2005, 04:12
New posts Exponential problem vd 1 19 Jun 2008, 04:59
New posts another exponential problem iggy614 6 13 Aug 2009, 20:31
New posts EXPERTS_POSTS_IN_THIS_TOPIC Exponential inequality gmatbull 4 10 Jun 2010, 11:28
New posts Exponential doubt rxs0005 3 11 Jul 2011, 13:57
Display posts from previous: Sort by

EXPONENTIALS Q

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma

Search for:


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com