Complex Numbers for Grade 10B

Complex Numbers for Grade 10B

10th Grade

20 Qs

quiz-placeholder

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Complex Numbers for Grade 10B

Complex Numbers for Grade 10B

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

Created by

Solomon Abalaka

Used 4+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify: 
(7 + 2i)(9 - 6i)

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

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does i2 = ?

-1
√-1
1
-√1

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify 
√-25

-5i
5
5i
-5

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify:
√-108

3i√6
3i√20
6i√3
20i√3

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify
2i - 7i + 10

-5i+10
5i
9i+10
5i+10

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify
3i - (4 + 7i)

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

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

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

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