This particular notation represents an infinite alternating harmonic series. In this case, each term alternates between positive and negative with diminishing magnitudes inversely proportional to n.
Harmonic series: A series that has terms in the form of 1/n, where n represents positive integers.
Geometric series: A series that has terms in the form of a constant multiplied by an exponent raised to powers of n.
Convergence tests: Various methods used to determine whether or not an infinite series converges or diverges. Examples include the comparison test and ratio test.
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