Question

What are the first, fourth, and tenth terms of the arithmetic sequence described by the rule: `A(n)=1+(n-1)(-4.1)`?

Answer 1

First term is `1`, fourth term is `-11.3` and tenth term is `-35.9`

Explanation:

As the `n^(th)` term is given by `A(n)=1+(n-1)(-4.1)`

First term is `A(1)=1+(1-1)(-4.1)=1+0=1`

Fourth term is `A(4)=1+(4-1)(-4.1)=1-3xx4.1=1-12.3=-11.3`

and tenth term is `A(10)=1+(10-1)(-4.1)=1-9xx4.1=1-36.9=-35.9`