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3 years ago

13

Write the expression for the nth term for m9, -27, 81

1 answer:

Varvara68 [4.7K]3 years ago

6 0

I don't think that that "m" belongs in this sequence. Focus on 9, -27, 81, ...

Multiplying 9 by what number produces the product -27?

Mult. -27 by what number produces 81?

This number is called the "common ratio" of this "geometric sequence."

Finish this recursive formula:

a_(n+1) = (a_n) * ( )

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