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4.4 Complex Numbers

Mathematics

9th - 12th Grade

CCSS covered

Used 6+ times

4.4 Complex Numbers
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15 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

SImplify:

(-4 - 7i) - (1 + 4i)

-3 - 11i

-3 + 11i

-5 + 11i

-5 - 11i

Tags

CCSS.HSN.CN.A.2

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Simplify:

(-5i)(-7 + 5i)

35i + 25i2

35i -25i2

-25 + 35i

25 + 35i

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Simplify:

(4 - 6i)(8 + 4i)

56 - 32i

32 + 24i

56 + 32i2

56 + 32i

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the conjugate of (34i)\left(3-4i\right)  ?

 (34i)\left(3-4i\right)  

 (3+4i)\left(3+4i\right)  

 (34i)\left(-3-4i\right)  

 i-i  

Tags

CCSS.HSN.CN.A.3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does i2 = ?

-1
√-1
1
-√1

Tags

CCSS.HSN.CN.A.1

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify: 
(7 + 2i)(9 - 6i)

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

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify
3i - (4 + 7i)

-4 + 10i
21 - 12i
4 - 10i
-4 - 4i

Tags

CCSS.HSN.CN.A.2

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