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Find the sum of the geometric sequence where the first term is 4 and the last term is 324 and the common ratio is 3

Sagot :

The sum is 484.

Step-by-step explanation:

[tex] \frac{4 - 324(3)}{1 - 3} \\ \\ \frac{4 - 972}{ - 2} \\ \\ \frac{ - 968}{ - 2} \\ \\ 484[/tex]

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