alleryStart learning →Which of these sequences is a harmonic progression?
A1, 3, 9, 27
B2, 4, 6, 8
C1, 2, 4, 8
D1, 1/2, 1/3, 1/4
Answer & Solution
Correct answer: D. 1, 1/2, 1/3, 1/4
The reciprocals 1, 2, 3, 4 form an arithmetic progression, so the original is harmonic.
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