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Topic:
how to find limit lim (sqrt(x+1)  sqrt(x)
Replies:
6
Last Post:
Jun 20, 2012 2:44 AM



Ben Brink
Posts:
201
From:
Rosenberg, TX
Registered:
11/11/06


RE: how to find limit lim (sqrt(x+1)  sqrt(x)
Posted:
Apr 9, 2012 8:11 PM



Calc, Your original function is same as (sqrt(x+1)  sqrt(x))/1. Multiply this expression by (sqrt(x+1) + sqrt(x))/(sqrt(x+1) + sqrt(x)), which has value 1. Now will the new "numerator" simplify? After simplifying, what does the new fraction look like? Can we now take the limit as x goes to infinity? Thanks for a great question! Ben
> Date: Mon, 9 Apr 2012 17:51:30 0400 > From: discussions@mathforum.org > To: discretemath@mathforum.org > Subject: how to find limit lim (sqrt(x+1)  sqrt(x) > > I am having hard time understanding how to find the limit for when x goes to infinity for lim (sqrt(x+1)  sqrt(x). Can you help me understand the steps?



