CPM Homework Help : PC3 Problem 11-114

Write the polar form of each complex number given below. Approximate your values to three decimal places. (Remember to think about the correct quadrant when you determine the value for $θ$ ).

$3 − 4i$
Step 1:
Graph the point.
Step 2:
Draw a right triangle with the $x$ -axis.
Step 3:
' $r$ ' is the length of the hypotenuse of the triangle. Calculate ' $r$ ' by using the Pythagorean Theorem.
Step 4:
Use trigonometry to determine the angle.

$−12 − 5i$