17-11-2016
Mathematics

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If a n = 4n + 1 then what are the first three terms of the sequence.

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triangles triangles

17-11-2016

n = 4n + 1
Substitute 1, 2 and 3 in for n - They're the first 3 terms of the sequence.

1 = 4(1)+1 = 5
2 = 4(2)+1 = 9
3 = 4(3)+1 = 13

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