Complex Numbers

Quiz

•

Mathematics

•

10th - 12th Grade

•

Medium

•

CCSS

HSN.CN.A.2, HSN.CN.A.1, HSN.CN.B.4

+4

Standards-aligned

Ali Grace Eiland

Used 1K+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:
(7 + 2i)(9 - 6i)

75-24i

63 - 24i - 12i²

51 - 24i

58 + 60i

Tags

CCSS.HSN.CN.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does i² = ?

-1

√-1

1

-√1

Tags

CCSS.HSN.CN.A.1

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify
√-25

-5i

5

5i

-5

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify:
√-108

3i√6

3i√20

6i√3

20i√3

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify
2i - 7i + 10

-5i+10

5i

9i+10

5i+10

Tags

CCSS.HSN.CN.A.2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify
3i - (4 + 7i)

-4 + 10i

21 - 12i

4 - 10i

-4 - 4i

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the sum.
(5-2i) + (-7+8i)

-2+6i

12+6i

-35-16i²

-35 -16i

Tags

CCSS.HSN.CN.A.2

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