Question

Given the explicit formula for an arithmetic sequence find the first five terms and the term named in theproblem.a=-7.1-2.1nFind a

Answer 1

`\begin{gathered} The\text{ first five terms will obtain by putting n=1,2,3,4 and 5} \\ So,\text{ } \\ a_1=-7.1-2.1*1=-9.2 \\ a_2=-7.1-2.1*2=-11.3 \\ a_3=-7.1-2.1*3=-13.4 \\ a_4=-7.1-2.1*4=-15.5 \\ a_5=-7.1-2.1*5=-17.6 \end{gathered}`