30. 9, -27, 81, -243, ... Find the next number

Gosr asked Jul 20, 2023

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34 votes

30. 9, -27, 81, -243, ...
Find the next number

Gosr asked Jul 20, 2023

by Gosr

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19 votes

Answer:

729

Explanation:

Write the recursive formula through the pattern:

a_(n+1)=-3a_(n)

Find terms of sequence through 9, -27, 81, -243 :

729

I hope this helps you

Ojrask answered Jul 24, 2023

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