Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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In the graph shown, four complex
numbers are plotted in the complex plane.
Which point represents the complex
number - 4 + i ? | | | |
a. | Point A | c. | Point C | b. | Point B | d. | Point D |
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2.
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In the graph shown, a complex number
is plotted in the complex plane.
What is the most appropriate
argument of the complex number? | | | |
a. | 36.9º | c. | 126.7º | b. | 53.1º | d. | 143.1º |
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3.
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In the graph shown, a complex number
is plotted in the complex plane.
What is the modulus of the complex
number? | | | |
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4.
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Determine the value of: 
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5.
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Given that  , determine the value of  .
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6.
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What is the rectangular form of the complex number  ?
a. | 11.39 + 3.76i | c. | 1.67 +
11.88i | b. | 1.67 + 0.99i | d. | 0.94 +
3.76i |
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7.
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In the graph shown, a complex number
is plotted in the complex plane.
What is the polar form of the
complex number? | | | |
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8.
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Consider the two complex numbers in polar form:
What is the approximate value of  in polar
form?
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9.
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In the graph shown, two complex
numbers are plotted in the complex plane.
What is the sum of these two
complex numbers in polar form? | | | |
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10.
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In the graph shown, two complex
numbers are plotted in the complex plane.
Which graph below shows the product
of these two complex numbers shown at the right? | | | |
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