Find the 5and term of the arithmetic sequence 5, 9, 13,

Ekalavya asked Sep 26, 2023

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Ekalavya asked Sep 26, 2023

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20 votes

Notice that:

$\begin{gathered} 9-5=4, \\ 13-9=4. \end{gathered}$

Since the sequence is arithmetic then, the nth term has the following form:

$a_n=5+4\cdot(n-1)\text{.}$

Therefore:

Answer: 209.

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