Calculus: ratio test: checking Σ4n/n! for convergence
The tutor uses the ratio test to show the infinite series Σ4n/n! converges. Example: Check Σ0∞4n/n! for convergence or divergence. Solution: The ratio test says that, if limn→∞|an+1/an| < 1, then the series converges. In this case, the terms are …
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