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In the geometric sequence with a first term of 6 and a second term of -6, what is the 205^th term?

 Jul 17, 2020
 #1
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+1

COmmon ratio    r      1st term 6    multiplied by common ratio yields second term

                                        so   r = -1

this sequence just bounces back and forth between  6    and  -6  

    even numbered terms are negative  (like the second term above)

       odd numbered terms are positive

205 th term would be   +6

 Jul 18, 2020

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