9. Sequences, Series, & Induction

Write the first four terms of each sequence whose general term is given. a_n = 7n - 4

In Exercises 1–12, write the first four terms of each sequence whose general term is given. an=3ⁿ

Write the first four terms of each sequence whose general term is given. $a_n=1/(n-1)!$

In Exercises 1–12, write the first four terms of each sequence whose general term is given. an=(−3)ⁿ

Evaluate $\frac{40!}{4!38!}$

In Exercises 1–12, write the first four terms of each sequence whose general term is given. a_n=(−1)ⁿ(n+3)

In Exercises 8–9, find each indicated sum. This is a summation, refer to the textbook.