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Complex Number Operations and Conjugates

Authored by Anthony Clark

Mathematics

11th Grade

CCSS covered

Complex Number Operations and Conjugates
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the product of the complex conjugates 8 + i and 8 - i?

62

63

64

65

Tags

CCSS.HSN.CN.C.8

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the product of the complex conjugates 5 - 4i and 5 + 4i?

41

39

40

38

Tags

CCSS.HSN.CN.C.8

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the product of the complex conjugates -7 - 2i and -7 + 2i?

53

50

52

51

Tags

CCSS.HSN.CN.C.8

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the real part of the complex number 6 - 3i?

-6

3

-3

6

Tags

CCSS.HSN.CN.A.1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Refer to the above image, what is the conjugate of the denominator?

8 + 6i

6 + 8i

6 - 8i

-6 +8i

Tags

CCSS.HSN.CN.A.3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify: -11 + 3i + 9 + 2i

-20 + 5i

-2 + 6i

-2 + 5i

-20 + 6i

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify: 4 + i + 7 - 5i

1 - 4i

1 + 4i

11 + 4i

11 - 4i

Tags

CCSS.HSN.CN.A.2

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