Question

Find the common ratio of the geometric sequence 9,-18,36

Answer 1

Answer:

r = - 2

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = $\frac{a_{1} }{a_{1} }$ = $\frac{-18}{9}$ = - 2

Answer 2

Answer:

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Step-by-step explanation: