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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