Complex Numbers

Quiz

•

Mathematics

•

11th - 12th Grade

•

Practice Problem

•

Medium

•

CCSS

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

+1

Standards-aligned

Heather Smetak

Used 680+ times

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simplify:
(10+ 15i) - (48 - 30i)

58 - 45i

58 - 15i

-38 - 15i

-38 + 45i

Tags

CCSS.HSN.CN.A.2

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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

75-24i

63 - 24i - 12i²

51 - 24i

58 + 60i

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What does i² = ?

-1

√-1

1

-√1

Tags

CCSS.HSN.CN.A.1

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simplify
3i - (4 + 7i)

-4 + 10i

21 - 12i

4 - 10i

-4 - 4i

Tags

CCSS.HSN.CN.A.2

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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

-2+6i

12+6i

-35-16i²

-35 -16i

Tags

CCSS.HSN.CN.A.2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Multiply
(2i)(3i)

5i

-5

6i

-6

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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

-6+12i

-12-6i

-2+7i

12+6i

Tags

CCSS.HSA.APR.A.1

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Complex Numbers