The Root, Ratio, and Integral Tests
Ratio Test
Let be an infinite series with positive terms and let .
1) the series converges
2) the series diverges
3) r=1 the test is inconlusive
Root Test
Let be an infinite series with non-negative term sand let
1) the series converges
2) the series diverges
3) the test is inconclusive
Comparison Test
Let and be series with positive terms.
1) If diverges
Limit Comparison Test
Let and be series with positive terms and let
!) If L is a finite positive real number, then and either both converge or both diverge
2) If L=0, and converges, then converges
3) if and diverges, then diverges