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Complex Numbers

Authored by Kristen Foy

Mathematics

11th Grade

Used 1+ times

Complex Numbers
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25 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

(-7 + 9i) + (2 - 10i)

-5 + i

-5 - i

-9 + 1

9 - i

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

(4 - 2i) - (3 + 6i)

7 - 4i

1 + 4i

1 - 8i

7 - 8i

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What does i2 equal?

-1

√-1

1

-√1

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The expression (2 + 3i)2 is equal to

-5
-5 + 12i
13
13 + 12i

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

(3 + 8i)(-2 - i)

2-19i

23-i

34+5i

23-i

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

√-36

6
-6
-6i
6i

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What letter represents an imaginary number?

a

i

j

x

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