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21 March, 07:36

Explain how to write a formula to describe the sequence 1, 3, 9, 27, 81, 243, ...

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  1. 21 March, 07:40
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    nth term = 3^ (n-1)

    Step-by-step explanation:

    Just notice that it's an increasing power of 3.

    First term has power 0, second has power 1, ..., nth term has power (n-1)
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