Complex Numbers and Operations

Complex Numbers and Operations

10th Grade

15 Qs

quiz-placeholder

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Complex Numbers and Operations

Complex Numbers and Operations

Assessment

Quiz

Mathematics

10th Grade

Hard

Created by

Anthony Clark

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify:

12

1 - i

6 + 6i

4 - 2i

-2 + i

12 - 12i

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

y2 + 1 = 0

-i

-1

i, -i

1, -1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Use square roots to solve this equation: x2 = -18

±√-18

±i√18

±3i√2

±2i√3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Subtract:

(3 - 2i) - (-9 + i )

12 - 3i

-6 - i

-25 + 21i

9i

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Multiply:

3i(5 - 4i)

15 - 4i

12 + 15i

8i + 7i2

3i2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Factor using sum of squares:

4x2 + 16

(2x + 4)(2x - 4)

(2x + 4i)(2x - 4i)

(2x + 8)(2x - 8)

(2x + 8i)(2x - 8i)

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x2 + 100 = 0

50, -50

50i, -50i

10, -10

10i, -10i

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