18.01 Section, September 9, 2015
Section leader: Eva Belmont (ebelmont@mit.edu, E18-401B)
.
Review: functions
1. Describe how f (2x) and f ( 21 x) compare to f (x).
2. Sketch the inverse function of sin(x) (make sure what you draw is actually a function!).
3. What is the inverse function of y =
4. Sketch y =
5. Is
x3
1−x2
1
x−1 ?
1
2x−1 .
an even or odd function?
1
Draw it.