1. List the first 9 terms of the sequence defined recursively by = −2 ∙(−1 −1), with 1 = 2 and 2 = 3 2. Compute the value of ∑ 8^ =1> , where is the same sequence as in the previous question.

3. Is the sequence from question 1 arithmetic, geometric, or neither? Explain how you reach your conclusion.

4. Find the sum of the first 200 terms of the arithmetic sequence that begins: 12, 18, 24, …

5. Find the sum of the first 8 terms of the geometric sequence that begins: 12, 18, 27, …

6. Find the sum of the infinite geometric sequence that begins 1/12 ,1/18

,1/27 , ...