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If n is a term of the sequence 2, 5, 8, 11, ..., which expression would give the value of n?
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If n is a term of the sequence 2, 5, 8, 11, ..., which expression would give the value of n?

User Efremidze
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Try this option:
Note, that the given sequence 2,5,8,11... likes to 3,6,9,12...

Using the described property it is possible to express the value for n:
a_n=3n-1, where n∈[1;+oo).

answer: 3n-1
User Dagge
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