Complex Numbers Quiz

Complex Numbers

 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
Simplify.

 1.

mc001-1.jpg
a.
mc001-2.jpg
c.
mc001-4.jpg
b.
mc001-3.jpg
d.
mc001-5.jpg

 2.

mc002-1.jpg
a.
mc002-2.jpg
c.
mc002-4.jpg
b.
mc002-3.jpg
d.
mc002-5.jpg

 3.

mc003-1.jpgmc003-2.jpg
a.
mc003-4.jpg
c.
mc003-6.jpg
b.
mc003-5.jpg
d.
mc003-7.jpg

 4.

mc004-1.jpgmc004-2.jpg
a.
mc004-4.jpg
c.
mc004-6.jpg
b.
mc004-5.jpg
d.
mc004-7.jpg

 5.

What is the sum (14 – 5i) + (8 + 12i)?
a.
22 – 17i
c.
2 – 13i
b.
6 + 7i
d.
6 – 17i

 6.

Which represents the product of 3i and 9 – 5i?
a.
15 – 27i
c.
15 – 27i
b.
15 + 27i
d.
15 + 27i

 7.

Which is equivalent to (7 – 6i)(2 + i)?
a.
20 – 5i
c.
8 + 5i
b.
8 – 5i
d.
20 + 5i

 8.

Which product is a real number?
a.
(3 + 4i)2
c.
(3 – 4i)(4 + 3i)
b.
(3 – 4i)2
d.
(3 – 4i)(3 + 4i)

 9.

Which is equal to i7?
a.
1
c.
i
b.
1
d.
i

 10.

Which is the reciprocal of i11?
a.
1
c.
i
b.
1
d.
i

 11.

Which is equal to (4 – 12i) – (10 – 8i) + (4 + 7i)?
a.
2 + 3i
c.
10 – 13i
b.
10 + 3i
d.
8 – 13i

 12.

Which is equal to mc012-1.jpg?
a.
41i
c.
9
b.
9i
d.
41

 13.

Which is equivalent to i–30?
a.
1
c.
i
b.
1
d.
i

Click here for ANSWERS

1. D
2. B
3. A
4. C
5. B
6. C
7. A
8. D
9. D
10.C
11.B
12.A
13.B

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