Complex Numbers Worksheet
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1
2
3Intermediate Algebra
Complex Numbers
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Provide an appropriate response.
1) True or false? i = -1
1)
A) True
B) False
Write the number as a product of a real number and i. Simplify the radical expression.
2)
2)
-9
A) ± 3
B) -i 3
C) -3i
D) 3i
3)
3)
-169
A) -i 13
B) -13i
C) 13i
D) ± 13
4)
4)
-81
A) -9i
B) 9i
C) ± 9
D) i 9
5)
5)
-200
A) 10 2
B) -10i 2
C) -10 2
D) 10i 2
Multiply or divide as indicated.
6)
6)
-2 ·
-2
A) -2i
B) 2
C) -2
D) 2i
7)
7)
-49 ·
-25
A) -35i
B) -35
C) 35
D) 35i
-12
8)
8)
-4
A) -
3
B) -i 3
C) i 3
D)
3
-144
9)
9)
4
A) -6i
B) 6
C) -6
D) 6i
Add or subtract as indicated. Write your answer in the form a + bi.
10) (3 - 4i) + (6 + 7i)
10)
A) 9 + 3i
B) 9 - 3i
C) -9 - 3i
D) -3 + 11i
11) (7 + 3i) - (-9 + i)
11)
A) -16 - 2i
B) 16 - 2i
C) 16 + 2i
D) -2 + 4i
1
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