Complex Numbers Flipbook

Complex Numbers Flipbook

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

Square Roots of Negative Numbers

Flipbook tab:

Multiple Choice

You try!

Simplify.

• -5i
• 5
• 5i
• -5

Multiple Choice

$$\sqrt{-20}$$   You try! Simplify.

• $$2i\sqrt{5}$$  

• $$-2i\sqrt{5}$$  

• $$20i$$  

• $$-20i$$  

Products of Pure Imaginary Numbers

​Flipbook tab:

Multiple Choice

You try!

$$-7i\cdot2i$$  

• -14

• $$14i$$  

• 14

• $$-5i$$  

Multiple Choice

You try!

$$\sqrt{-6}\cdot\sqrt[]{-15}$$  

• $$-3\ \sqrt[]{10}$$  

• $$-9\ \sqrt[]{10}$$  

• $$-10\ \sqrt[]{3}$$  

• $$-10\ \sqrt[]{9}$$  

Powers of i

Flipbook tab:

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

1, -1, i, -i

Multiple Choice

You try!

$$i^{11}$$  

• $$i$$  

• $$-i$$  

• -1

• 1

Add/Subtract Complex #

​Flipbook tab:

Multiple Choice

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

• -5 - 2i
• 19 - 2i
• -5 + 6i
• 19 + 6i

Multiply Complex #

​Remember - (a+bi)²​ = (a+bi)(a+bi)

​Flipbook tab:

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

Multiple Choice

Multiply: 
(4 – 3i)(-7 – 2i)

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