Write the Word or Phrase That Best Completes Each Statement $S =$

Short Answer

Write the word or phrase that best completes each statement or answers the question.
Provide the missing information.
-Given an infinite geometric series with first term a1 and common ratio r, if |r| < 1, then the sum S is
given by the formula $S =$ $\text { If } | r | > 1$ | > 1, then the sum (does/does not) exist.