In mathematics, which test confirms the convergence of the infinite alternating series ?

Answer and explanation

Correct answer: A. Leibniz alternating series test

  1. Step 1: Here . is monotonically decreasing () and . By Leibniz's test, the alternating series converges. Answer: Leibniz alternating series test. Why not the others: the ratio and root tests give a limit of 1 (inconclusive), and the series converges only conditionally.

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