In mathematics, which test confirms the convergence of the infinite alternating series ?
Answer and explanation
Correct answer: A. Leibniz alternating series test
- 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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