(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Just a quick question I was looking to have cross checked…

Q. Find u_{n}, the nth term of sequence -5, 0, 5, 10,…

2. Relevant equations

u_{n}= a + (n-1)d

3. The attempt at a solution

-5 + (n-1)5

-5 + 5n - 5

5n-10

The answer in the book, however, indicates that u_{n}= 5n. Am I wrong, or are they? Thanks.

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# Arithmetic Sequences and Series

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