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____
The sequence is geometric:
3, 13, 23, 33,...

True
False***
_____________________
The sequence is geometric:
5, -25, 125, -625,...

True***
False

1 Answer

0 votes

Answer:

1. False 2. True

Explanation:

For a geometric sequence,


(a_2)/(a_1)=(a_3)/(a_2)

1. The sequence is :

3, 13, 23, 33,...


(13)/(3)\\e (23)/(13)

It is not geometric. It is false

2. The sequence is :

5, -25, 125, -625


(-25)/(5)=(125)/(-25)\\\\-5=-5

So, the sequence is geometric as the common ratio is same. It is true.

User Pedro Serra
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