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# ​ What is the recursive rule for the sequence?

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What is the recursive rule for the sequence?

SamJones  May 1, 2018
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What is the recursive rule for the sequence?

$$\text{arithmetical sequence: \\ a_n-a_{n-1} = d = 6 \\ }$$

$$\text{arithmetical sequence: \\ a_n = a_1 + (n-1)d \\ } \\ \text{ a_1 = 39  and d=6  }$$

$$\begin{array}{|rcll|} \hline a_n &=& a_1 + (n-1)d \\ a_n &=& 39 + (n-1)6 \\ a_n &=& 39+6n -6 \\ \mathbf{a_n} & \mathbf{=} & \mathbf{33+6n} \\ \hline \end{array}$$

heureka  May 2, 2018