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Complex Number Operations

Authored by Carol Snively

Mathematics

10th - 11th Grade

Used 5+ times

Complex Number Operations
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20 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

10
-10
10i
-10i

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the complex conjugate of  4-3i?

A.  1/(4-3i)
B. 1/(4+3i)
C.  -4 + 3i
D.  4 + 3i

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the sum.
(5-2i) + (-7+8i)

-2+6i
12+6i
-35-16i2
-35 -16i

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(3+8i)(-2-i)

2-19i
23-i
34+5i
23-i

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(2i)(3i)

5i
-5
6i
-6

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

-6i+3i

3i
-3i
-2i
-3i2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does i2 equal?

-1

√-1

1

-√1

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