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#1 2008-04-01 10:53:20

sumpm1
Member
Registered: 2007-03-05
Posts: 42

Real Analysis Help: Prove √(a sub n) converges to √a

Hi. I need to show that the sequence √(a sub n) converges to √a. I don't even know how to begin this problem. Any help is appreciated.

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#2 2008-04-02 02:00:16

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: Real Analysis Help: Prove √(a sub n) converges to √a

Hint: The inverse of taking a square root is squaring it.


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

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