Lesson 9 More Hidden Identities Practice Understanding
In the diagram,
1.
2.
3.
4.
Graph the complex numbers as vectors on the diagram.
5.
The magnitude of a complex is its modulus. It is symbolized by the notation
Find the modulus of each of the complex numbers.
a.
b.
c.
d.
e.
f.
g.
Solve the following trigonometric equations. Write your answer(s) in the form
6.
7.
8.
9.
10.
11.
12.
13.
14.
Use the graph to find all of the values for
15.
16.
Use the unit circle to explain the solutions you found in problem 15.
17.
Use the graph to approximate the points of intersection of the graphs of
18.
The scale on the
a.
Label the graph with the approximate location of
b.
Label the graph with the approximate location of