Precalculus With Limits A Graphing Approach was written by and is associated to the ISBN: 9780618851522. The full step-by-step solution to problem: 5.2.80 from chapter: 5.2 was answered by , our top Math solution expert on 01/17/18, 03:02PM. Since the solution to 5.2.80 from 5.2 chapter was answered, more than 217 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 84 chapters, and 8769 solutions. The answer to “In Exercises 7780, (a) verify the identity and (b) determine if the identity is true for the given value of x. Explain.” is broken down into a number of easy to follow steps, and 22 words. This textbook survival guide was created for the textbook: Precalculus With Limits A Graphing Approach, edition: 5.