Complex Numbers Flipbook Lesson Slides: 13 Slides

13 Slides • 7 Questions

1

Complex Numbers Flipbook

Perfect squares: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, ...

2

Square Roots of Negative Numbers

Flipbook tab:

3

4

Multiple Choice

You try!

Simplify.

1

-5i

2

5

3

5i

4

-5

5

6

Multiple Choice

$\sqrt{-20}$ You try! Simplify.

1

$2i\sqrt{5}$

2

$-2i\sqrt{5}$

3

$20i$

4

$-20i$

7

Products of Pure Imaginary Numbers

Flipbook tab:

8

9

Multiple Choice

You try!

$-7i\cdot2i$

1

-14

2

$14i$

3

14

4

$-5i$

10

11

Multiple Choice

You try!

$\sqrt{-6}\cdot\sqrt[]{-15}$

1

$-3\ \sqrt[]{10}$

2

$-9\ \sqrt[]{10}$

3

$-10\ \sqrt[]{3}$

4

$-10\ \sqrt[]{9}$

12

Powers of i

Flipbook tab:

***Only 4 possible answers for these types of questions:

1, -1, i, -i

13

14

Multiple Choice

You try!

$i^{11}$

1

$i$

2

$-i$

3

-1

4

1

15

Add/Subtract Complex #

Flipbook tab:

16

17

Multiple Choice

You try!
(7 + 2i) - (-12 - 4i)

1

-5 - 2i

2

19 - 2i

3

-5 + 6i

4

19 + 6i

18

Multiply Complex #

Remember - (a+bi)² = (a+bi)(a+bi)

Flipbook tab:

19

This is a special case because the 12i-12i cancels out, so the final answer doesn't have an i!

20

Multiple Choice

Multiply:
(4 – 3i)(-7 – 2i)

1

A. -23 + 13i

2

B. -23 - 29i

3

C. -34 + 13i

4

D. -34 - 29i

Complex Numbers Flipbook

Perfect squares: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, ...

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