Alternating sequences are sequences in which the terms alternate between positive and negative values.
Topic 10.7: 10.7 Alternating Series Test for Convergence
Alternating Sequences cheat sheet for homework
A convergent sequence is a sequence that approaches a specific value as the terms go to infinity.
A divergent sequence is a sequence that does not approach any specific value as the terms go to infinity.
The absolute value of a number is its distance from zero on the number line.