3 years ago

What is the explicit formula for this sequence? −8, −3, 2, 7, …

Mathematics

1 answer:

hjlf3 years ago

3 0

It's an arithmetical sequence with $a_1=-8,d=5$

$a_n=a_1+(n-1)d\\\\a_n=-8+(n-1)\cdot5\\\\a_n=-8+5n-5\\\\\boxed{a_n=5n-13}$

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