Simplify complex numbers

Simplify complex numbers

9th - 12th Grade

18 Qs

quiz-placeholder

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Simplify complex numbers

Simplify complex numbers

Assessment

Quiz

Mathematics

9th - 12th Grade

Practice Problem

Medium

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

+3

Standards-aligned

Created by

Melissa Esquerra

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

i7

i
-i
1
-1

Tags

CCSS.HSN.CN.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

i13

-1
1
i
-i

Tags

CCSS.HSN.CN.A.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify:
(3 + 2i) + (4i + 6)

9 + 6i
7i + 8
9 + 6i2
9 - 6i

Tags

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify:
(4 + 7i) - (3 + 2i)

1 + 5i
7 + 9i
1 + 9i
-1 + 5i

Tags

CCSS.HSN.CN.A.2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify:
-3i(4 + 2i)

6 - 12i
6 + 12i
-12i - 6i2
-12i + 6i2

Tags

CCSS.HSA.APR.A.1

6.

MULTIPLE CHOICE QUESTION

20 sec • 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

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify:
(2 - 3i)(5 + 4i)

22 - 7i
22 + 7i
22 - 7i2
22 + 7i2

Tags

CCSS.HSN.CN.C.8

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