![\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=7\\ d=6 \end{cases} \\\\\\ a_n=7+(n-1)6\implies a_n=7+6n-6\implies \stackrel{\textit{Explicit Formula}}{\stackrel{f(n)}{a_n}=6n+1} \\\\\\ therefore\qquad \qquad f(10)=6(10)+1\implies f(10)=61](/tpl/images/0486/6400/0ab34.png)
Can someone be so freaking awesome and me out with the correct answer : ( 30 !
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Mathematics, 30.01.2020 17:43, acalvario2019
Can someone be so freaking awesome and me out with the correct answer : ( 30 !
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