Answer:
The answer u put in the thing is correct!
Step-by-step explanation:
Answer:
This is an geometric sequence because the common ratio is -2.
Step-by-step explanation:
-2*-2=4
4*-2=-8
-8*-2=16
So, as we are seeing that the common ratio is -2, so this is an geometric sequence.
Answer:
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Step-by-step explanation:
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Answer:
6. my bad is it wrong
Step-by-step explanation:

The absolute value is always non negative.