Khan Academy Static

If the sum of a series must be smaller than the sum of another series that converges, then that series must converge as well. Makes sense, no? This notion, and similar ones, are at the basis of the comparison convergence tests.

5835_Worked_example_direct_comparison_test.html

5834_Direct_comparison_test.html

5836_Limit_comparison_test.html

5837_Proof_harmonic_series_diverges.html