Answered

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Determine whether each sequence is a geometric sequence. If yes, then state the common ratio.
1, -4, 16, -64, ...

Sagot :

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Answer:

This is a geometric sequence with a common ratio of -4

Step-by-step explanation:

Take the second term and divide by the first term

-4/1 = -4

Take the third term and divide by the second term

16/-4 = -4

Take the fourth term and divide by the third

-64/16 = -4

This is a geometric sequence with a common ratio of -4
-4 is multiplied each time

1x-4= -4
-4x-4= 16
16x-4= -64
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