2.4B Multiplying Imaginary and Complex Numbers

2.4B Multiplying Imaginary and Complex Numbers

11th Grade

15 Qs

quiz-placeholder

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2.4B Multiplying Imaginary and Complex Numbers

2.4B Multiplying Imaginary and Complex Numbers

Assessment

Quiz

Mathematics

11th Grade

Medium

CCSS
HSN.CN.A.2, HSN.CN.C.8, HSN.CN.A.3

Standards-aligned

Created by

Jennie Galay

Used 9+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Multiply:
(2-5i)(2+5i)

29
4 - 25i
25 - 10i
-21

Tags

CCSS.HSN.CN.C.8

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

(2i)(3i)

5i
-5
6i2
-6

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

(3i)(-2+4i)

-6+12i
-12-6i
-2+7i
12+6i

Tags

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

10 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

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which expression is equivalent to (-6 + i)²?

36 - 12i
35 - 12i
36i²
35i

Tags

CCSS.HSN.CN.C.8

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Multiply: 
(4 – 3i)(-7 – 2i)

A.  -23 + 13i
B.  -23 - 29i
C.  -34 + 13i
D.  -34 - 29i

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Multiply:
(2-5i)(2+5i)

29
4 - 25i
25 - 10i
-21

Tags

CCSS.HSN.CN.C.8

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