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You are here: Home / Official GMAT Guides / 2018 Official GMAT Guide /

Question 206 Problem Solving 2018 GMAT Official Guide

Question 206 Problem Solving 2018 GMAT Official Guide

 
Video explanation: A sequence of numbers $a_1$, $a_2$, $a_3$,. . . defined as follows $a_1=3$…

Comments

  1. Yousef says

    June 13, 2021 at 2:21 PM

    Can’t we just say that since a_n=t
    then the terms before it namely a_n-1 and a_n-2 are 1 and t, as a result a_n would be t*1=t
    then a_n+1 would be t*1*t=t^2
    and thus a_n+2 would t*1*t*t^2 = t^4

    Reply
    • GMAT Quantum says

      June 15, 2021 at 12:11 PM

      No, because $a_{n-1} = \sqrt{t}$ and $a_{n-2}= t^{\frac{1}{4}}$.

      Reply

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