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U8 L6 Complex numbers day 1.notebook Unit 8 Lesson 6 Complex Numbers Definition of the Imaginary Unit &

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U8 L6 Complex numbers day 1.notebook

Unit 8 Lesson 6

Complex Numbers

Definition of the Imaginary Unit

U8 L6 Complex numbers day 1.notebook

Set of All Real #s

Real ImaginaryComplex,10, ‐8,

For any real number b,

To simplify, 1st write negative radicals in terms of i

1. 2. 3. 4.example √36 √16 i=6i

U8 L6 Complex numbers day 1.notebook

1stWrite negative radicals in terms of i.2ndUse the product rule to multiply.

1stWrite negative radicals in terms of i.2ndDivide coefficients and radicals

U8 L6 Complex numbers day 1.notebook

A complex number is a combo of real and imaginary #'s and will be written in the form a + bi, where a and b are real numbers and i is the imaginary unit.

examples: a) 5+2i b) -4 - 2i c) 6i

U8 L6 Complex numbers day 1.notebook

Subtract the real part, subtract the imaginary part.

Can you find the i button on your calculator??

WITHOUT CALCULATOR!

d) (4+3i)2

e) (5+2i)(52i) f) (2i)(7i)

U8 L6 Complex numbers day 1.notebook

Homework

U8 L6 Worksheet

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