Mathematics, 06.07.2019 02:30 versaceblooper
Write an explicit formula for the sequence 8, 6, 4, 2, 0, then find a14.
Answers: 1
![\bf n^{th}\textit{ term of an arithmetic sequence}\\\\a_n=a_1+(n-1)d\qquad\begin{cases}n=n^{th}\ term\\a_1=\textit{first term's value}\\d=\textit{common difference}\\[-0.5em]\hrulefill\\a_1=8\\d=-2\\n=14\end{cases}\\\\\\a_{14}=8+(14-1)(-2)\implies a_{14}=8-26\implies a_{14}=-18](/tpl/images/0056/2975/10a92.png)
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Write an explicit formula for the sequence 8, 6, 4, 2, 0, then find a14....
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