Polar Form Of Complex Numbers Worksheet With Answer Key - Openstax College Page 5
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25OpenStax-CNX module: m49408
5
Example 3
Finding the Absolute Value of a Complex Number
z = 3
4i,
z .
Given
nd
Solution
Using the formula, we have
2
2
z =
x
+ y
2
2
z =
(3)
+ ( 4)
(3)
z =
9 + 16
z =
25
z = 5
z
The absolute value
is 5. See Figure 4.
Figure 4
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