Question

Find the 60th term of the arithmetic sequence 4, -1, -6, ...

Answer 1

`-291`

Explanation:

From the three terms, we can conclude that the arithmetic sequence for this sequence is
`a_(n)=4+(n-1)(-5)`.

`a_(60)=4+(60-1)(-5)`

`=-291`

∴ The 60th term of the arithmetic sequence is
`-291`.

Hope this helps :)