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Given the following geometric sequence, find the 12th term: {2, -4, 8, …}. -4096 2048 4096 -2048
Question
Given the following geometric sequence, find the 12th term: {2, -4, 8, …}.
-4096
2048
4096
-2048
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Mathematics
3 years
2021-07-18T18:34:07+00:00
2021-07-18T18:34:07+00:00 2 Answers
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Answers ( )
Use formula: an = a1 * r^(n-1)
a1 = 2, r = -2
a12 = 2 * -2^(12-1)
a12 = 2 * -2^11
a12 = 2 * -2048
a12 = -4096
Solution: -4096
Answer: -4096
Step-by-step explanation:
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