Representing Complex Numbers

Representing Complex Numbers

10th - 12th Grade

30 Qs

quiz-placeholder

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Representing Complex Numbers

Representing Complex Numbers

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Hard

CCSS
HSN.CN.A.2, HSN.CN.A.1, HSN.CN.A.3

+3

Standards-aligned

Created by

Barbara White

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify -√-8

-i√8
-2i√2
2i√2
-8i

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify 2√-32

2i√32
4i√2
8i√2
-16i√2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(12 - 5i) + (-3 + 4i)

A. 9 - i
B. 15 - 9i
C. -16 + 63i
D. 9 - 9i

Tags

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Evaluate (9 + 3i) (9 - 3i). 

81 -9i
90
81 + 27i -9i2
81i - 9

Tags

CCSS.HSN.CN.C.8

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

i7

i
-i
1
-1

Tags

CCSS.HSN.CN.A.2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify: 
(10+ 15i) - (48 - 30i)

58 - 45i
58 - 15i
-38 - 15i
-38 + 45i

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does i2 = ?

-1
√-1
1
-√1

Tags

CCSS.HSN.CN.A.1

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