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Simplifying Complex Numbers

Authored by William Harrell

Mathematics

10th Grade

CCSS covered

Used 13+ times

Simplifying Complex Numbers
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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does i2 = ?

-1
√-1
1
-√1

Tags

CCSS.HSN.CN.A.1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify 
√-25

-5i
5
5i
-5

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

10
-10
10i
-10i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify:
3√-81

-27
3i√3
27i
9i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify: 
(10+ 15i)-(48 - 30i)

58 - 45i
58 - 15i
-38 - 15i
-38 + 45i

Tags

CCSS.HSA.APR.A.1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify: 
(7 + 2i)(9 - 6i)

75-24i
63 - 24i  - 12i2
51 - 24i
58 + 60i

Tags

CCSS.HSA.APR.A.1

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