They are 14, 42, 126, 378 and 1134.
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A descending geometric sequence is a sequence in which the ratio between successive terms is a positive constant which is less than 1.
FALSE (Apex)
Ratio
It is 4374
The sequence 2, 3, 5, 8, 12 is neither arithmetic nor geometric. In an arithmetic sequence, the difference between consecutive terms is constant, while in a geometric sequence, the ratio between consecutive terms is constant. In this sequence, there is no constant difference or ratio between consecutive terms, so it does not fit the criteria for either type of sequence.