I.A-Directions: Find the next three terms of the given sequences1.-7,-9,-11,-13.-15-17-192. 3.2, 4.3, 5.4,6-5, 7-6,87I.B. Write the first three terms of the sequence whose nth term is given by the rule.1. an=2n-12. an=3n3. an-8-2n