Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
May 2110:00 AM EDT
-11:59 PM EDT
Make the most of your break with the most realistic GMAT™ prep. Take up to $700 off select products.
Jun 1006:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
Updated on: 23 Nov 2011, 13:37
Originally posted by pittguy578 on 23 Nov 2011, 13:15.
Last edited by pittguy578 on 23 Nov 2011, 13:37, edited 1 time in total.
Last edited by pittguy578 on 23 Nov 2011, 13:37, edited 1 time in total.
Kudos
Bookmarks
I took the GMAT a couple of years back and scored a 690. I put off going to school due to family issues. I am reapplying this year and have some time..so I figured I would retake the test to see if I can get a higher score.
I feel very stupid as I remember doing these type of questions in the past, but I am drawing a blank on this particular question.
I have even looked at the answer and am still getting slightly confused when it comes to the end.
I know how they get to:
√(n+1)+√n /√(n+1)^2 -√n^2
I am just confused when simplifying the expression further-the next line down where they have
√(n+1)+(√n) /(n+1)-n
How did they get the (√(n+1)^2-√(n)^2 out of the denominator?
Any assistance is appreciated.
I feel very stupid as I remember doing these type of questions in the past, but I am drawing a blank on this particular question.
I have even looked at the answer and am still getting slightly confused when it comes to the end.
I know how they get to:
√(n+1)+√n /√(n+1)^2 -√n^2
I am just confused when simplifying the expression further-the next line down where they have
√(n+1)+(√n) /(n+1)-n
How did they get the (√(n+1)^2-√(n)^2 out of the denominator?
Any assistance is appreciated.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
23 Nov 2011, 13:38
Kudos
Bookmarks
I attached a photo of the question to the original message..too much typing otherwise:)
