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29-08-2017
Mathematics

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A geometric sequence with a fifth term of 1/3 and a constant ratio of 1/3

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HomertheGenius HomertheGenius

06-09-2017

We know that a 5 = 1/3 and r = 1/3
a 5 = a 1 * r^4
1/3 = a 1 * 1/3^4
1/3 = a 1 * 1/81
a 1= 1/3 : 1/81 = 1/3 * 81 = 27
Answer:
Geometric sequence is: 27, 9, 3, 1, 1/3, 1/9, 1/27,...

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