Know for test #1
* Write a power series to approximate a ratio function in the form S= a /(1-r)
* Write a Taylor or Maclaurin series to approximate a transcendental function
* Write a series for a composite function using the series for the 5 functions we memorized. (multiply, divide, u-sub)
* Use the nth term test to determine if a series converges.
*Use the ratio test to determine the interval or Radius of convergence
* Find the derivative or integration of a series.
* Approximate error using the 1st neglected term for an alternating series.