Is this sequence arithmetic, geometric, or neither? 9, -27, 81, -243, …
To determine if the sequence is arithmetic, geometric, or neither:
1.Arithmetic Sequence:
Calculate the differences between consecutive terms:
-27 - 9 = -36
81 - (-27) = 108
-243 - 81 = -324
The differences are not constant, so the sequence is not arithmetic.
2.Geometric Sequence:
Calculate the ratios between consecutive terms:
Click "Show Answer" to reveal the answer and analysis
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