Adding Subtracting Imaginary and Complex Numbers

Adding Subtracting Imaginary and Complex Numbers

12th Grade

15 Qs

quiz-placeholder

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Adding Subtracting Imaginary and Complex Numbers

Adding Subtracting Imaginary and Complex Numbers

Assessment

Quiz

Mathematics

12th Grade

Hard

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

+5

Standards-aligned

Created by

Anthony Clark

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Leon is asked to simplify √-120. A good first step would be to...

divide 120 by 2

replace the negative with an i on the outside of the radical

take the square root of -120

graph y = √-120

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The complex conjugate can be found by...

Changing the sign of both a and b

Changing the sign of a

Changing the sign of b

Switching the a and b values

Tags

CCSS.HSN.CN.A.3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If you are adding two complex numbers you should

add all the numbers together then divide by 2

add only the real numbers and subtract the complex numbers

add only the complex numbers and subtract the real numbers

add only the real numbers together and then add only the complex numbers together then stop

Tags

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The complex conjugate of 4 + 3i is

3 + 4i

3 - 4i

4 - 3i

4 + 3i

Tags

CCSS.HSN.CN.A.3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Solve for x: 

x = {-4, -1}

x = {-1, -4}

x = {2+i, 2-i}

x = {-2+i, -2-i}

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify

(12 - 4i) + (-2 + 8i)

8 + 104i

10 + 4i

14 - 4i

10 - 12i

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the resulting complex number when Z1 and Z2 are added as vectors?

Z1 + Z2

Z1 - Z2

Z2 - Z1

Z1 * Z2

Tags

CCSS.HSN-VM.B.4A

CCSS.HSN-VM.B.4B

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