6.3-6.4, due on February 13

1. These sections both seem really hard. I understood 6.3 for the most part, but I think I will have trouble doing the related problems. 6.4 didn't really make sense to me. In the example on top of page 149, it said that since k+1 is greater than or equal to 3, it follows that: and then a bunch of stuff that followed, but I didn't understand how any of that followed from the previous statements.

2. I think it's interesting that we are doing so much stuff with induction and recursive series. I remember I really liked recursive series in algebra II, but something must have changed between then and now haha.