Polar Form Of Complex Numbers Worksheet With Answer Key - Openstax College Page 2
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25OpenStax-CNX module: m49408
2
Solution
From the origin, move two units in the positive horizontal direction and three units in the negative
vertical direction. See Figure 1.
Figure 1
try it feature:
Exercise 2
(Solution on p. 18.)
1 + 5i
Plot the point
in the complex plane.
2 Finding the Absolute Value of a Complex Number
polar form
The rst step toward working with a complex number in
is to nd the absolute value. The
magnitude
z .
absolute value of a complex number is the same as its
, or
It measures the distance from the
z = 2 + 4i,
z .
origin to a point in the plane. For example, the graph of
in Figure 2, shows
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