5.4 Complex Numbers

5.4 Complex Numbers

9th - 12th Grade

15 Qs

quiz-placeholder

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5.4 Complex Numbers

5.4 Complex Numbers

Assessment

Quiz

Mathematics

9th - 12th Grade

Easy

Created by

Erin Gonzales

Used 4+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(5-2i) + (-7+8i)

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

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Multiply: 
(4 – 3i)(-7 – 2i)

A.  -23 + 13i
B.  -23 - 29i
C.  -34 + 13i
D.  -34 - 29i

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify: 
(10+ 15i) - (48 - 30i)

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

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

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

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(2i)(3i)

5i
-5
6i
-6

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What does i2 = ?

-1
√-1
1
-√1

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify
3i - (4 + 7i)

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

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