Last updated 8/18/08

Section Number	Date Assigned	Questions
12.1	9/3/08	No assigned questions.
12.2	9/3/08	When are two vectors parallel? What is a unit vector?
12.3	9/5/08	Why is there no associative law in Theorem 2? Will FOIL work for dot products? In the Corollary to Theorem 3, why are a and b required to be nonzero? Is (u.v)/|v| a vector or a scalar quantity?
12.4	9/8/08	Is the cross product of two vectors a vector or a scalar quantity? In the proof of Theorem 6, how did they get from after the second equal sign to after the third equal sign?
10.1	9/10/08	How does one parametrize a circle?
12.5	9/10/08	What does an equation of a line look like in three dimensions? Why? What does an equation of a plane look like? Why? Does this fit with your conclusions for 1(c) on the 9/17/04 worksheet?
12.6	9/12/08	Is a cylinder of finite height? Need it have a circular "base"? What is the primary tool for visualizing a surface (without technology)?
12.7	9/17/08	Under what circumstances might cylindrical coordinates be more useful than our usual coordinates? Spherical? In spherical coordinates, what angle does the third coordinate measure?