Parametric Equations
Math 142
Parametric Equations
Thus far in your mathematical education you learned how to describe a curve in both rectangular
and polar form
The equations used, whether rectangular or polar, describe the curve by giving the coordina

Math 142: Pre-Calculus II
Exam 3 Topics
Chapter 7
Section 7.1
Solve triangles using the Law of Sines
Applications
Determine the possible number of triangles
Section 7.2
Solving triangles using the law of Cosines
a 2 b 2 c 2 2bc cos A
b 2 a 2 c 2 2ac c

Math 142: Pre-Calculus II
Exam 2 Topics
Chapter 6
Section 6.1
Verifying identities
You will need to know the fundamental identities!
Section 6.2
Sum and difference formulas (I will give these to you)
Verifying identities using sum and difference formu