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Imaginary/Complex Numbers

Mathematics

10th - 12th Grade

CCSS covered

Used 8+ times

Imaginary/Complex Numbers
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate:
(4 − 7i) − (-3 + 6i)

7 − 13i
7 − i 
1 − 13i
1 − i 

Tags

CCSS.HSN.CN.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate: 
(1 − 2i) + (-4 + 2i)

-3
-3 − 4i
5 − 4i
5

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does i=  ?

1
-1
√-1
√1

Tags

CCSS.HSN.CN.A.1

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

6i (-5 + 10i)

-30i + 60i2
30i − 16i2
11i + 60i2
-11i2+ 16i

Tags

CCSS.HSA.APR.A.1

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Calculate (multiply):
 (4 + 3i)(4 − 3i)

16 − 9i2
25
7
8 − 6i

Tags

CCSS.HSN.CN.C.8

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the conjugate of:
5 + 7i

5 − 7i
-5 − 7i
-5 + 7i

Tags

CCSS.8.EE.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the conjugate of:
-4 − 8i

-4 + 8i
4 − 8i
4 + 8i

Tags

CCSS.HSN.CN.A.3

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