After today’s quiz, we started by talking about what makes “power series” different from the series that we’ve been working with so far this semester. The presence of \(x\) as a variable in the series means that we have a series that can both converge AND diverge — depending on the value of \(x\).
Before talking about today’s quiz, I asked the class to recall the motivation behind the Ratio Test. We will see many series with sequences that are “almost” geometric. That is to say, sequences that don’t have a strictly common ratio — but as n gets very large, the sequence has something very close to a common ratio. (In the last set of notes, I called this a “common-ish” ratio.)
The WeBWorK Q&A site is a place to ask and answer questions about your homework problems. HINT: To ask a question, start by logging in to your WeBWorK section, then click “Ask for Help” after any problem.
Recent Comments