Complex Numbers Quiz

Complex Numbers

Quiz

•

Mathematics

•

9th - 12th Grade

•

Medium

•

CCSS

HSN.CN.A.2, HSN.CN.A.1, HSN.CN.C.8

+1

Standards-aligned

Victoria Braine

Used 15+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the complex conjugate of 4-3i?

A. 1/(4-3i)

B. 1/(4+3i)

C. -4 + 3i

D. 4 + 3i

Tags

CCSS.HSN.CN.A.3

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

-5 + i

-5 - i

-9 + 1

9 - i

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

7 - 4i

1 + 4i

1 - 8i

7 - 8i

Tags

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Choose the correct answer for the operation pictured.

7-13i

7-i

1-13i

1-i

Tags

CCSS.HSN.CN.A.2

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What does i² equal?

-1

√-1

1

-√1

Tags

CCSS.HSN.CN.A.1

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The expression (2 + 3i)² is equal to

-5

-5 + 12i

13

13 + 12i

Tags

CCSS.HSN.CN.C.8

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

2-19i

23-i

34+5i

23-i

Tags

CCSS.HSN.CN.A.2

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