Question

What you mean by harmonic sequence?

Answer 1

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➡️ Harmonic Sequence is a sequence of real numbers formed by taking the reciprocals of an arithmetic progression.

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Answer 2

A harmonic sequence, also called a harmonic progression, is a sequence of the form:

1/a, 1/(a + d), 1/(a + 2d), ..., 1(a + (n - 1)d),

the terms being the reciprocals of those in an arithmetic sequence. There is no simple expression for the sum of a harmonic progression. The harmonic mean of two terms, as and ax+2 is given by

2asas+2/(as + as+2) = as+1.