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Geometric Series - Scope

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webmanik
 Post subject: Geometric Series - Scope
 Post Posted: Mon Jul 11, 2011 7:14 pm 
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Course Students


Posts: 3
are Geometric series are within GMAT scope -
e.g. Term n of a series of n terms = a + r^(n-1)
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jnelson0612
 Post subject: Re: Geometric Series - Scope
 Post Posted: Sun Jul 17, 2011 6:34 pm 
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ManhattanGMAT Staff


Posts: 1857
I think that if the GMAT tests a geometric series they will provide the formula, so I wouldn't worry about memorizing it.

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Jamie Nelson
ManhattanGMAT Instructor
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biswas_sandeep
 Post subject: Re: Geometric Series - Scope
 Post Posted: Mon Jul 18, 2011 2:58 pm 
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Students


Posts: 8
Hi webmanik,
Tn = a * r^(n-1) and not a + r^(n-1).

Thanks
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jnelson0612
 Post subject: Re: Geometric Series - Scope
 Post Posted: Thu Jul 21, 2011 11:58 pm 
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ManhattanGMAT Staff


Posts: 1857
Sandeep, you are right--thanks for clarifying!

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Jamie Nelson
ManhattanGMAT Instructor
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