Warm up – Simplify. Questions over hw? Skills Check Perform the indicated operation. Find the area & perimeter of the rectangle. 3. Perimeter = ____.

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Presentation transcript:

Warm up – Simplify

Questions over hw?

Skills Check Perform the indicated operation. Find the area & perimeter of the rectangle. 3. Perimeter = ____ 4. Area = ____ 2x + 1 2x – 3

Imaginary Numbers

You CAN have a negative under the radical. You will bring out an “i“ (imaginary).

Powers of i (The i Chart)

“I one, I one!!” Negatives in the middle. Reference

Simplify

Complex Number Standard Form (add this to your notes)

Add and Subtract Complex Numbers

Add/Subt Complex Numbers 1.Treat the i’s like variables 2.Combine like terms 3.Simplify (no powers of i higher than 1 are allowed) 4.Answer in standard form a + bi

Simplify

Multiplying Complex Numbers (no powers of i higher than 1 are allowed in your answer)

Multiplying Complex Numbers

Dividing Complex Numbers (no powers of i in the denominator are allowed in your answer)

What is a Conjugate? Example: (2 – 4i)

17. Dividing – Multiply top & bottom by the Conjugate

18. Dividing – Multiply top & bottom by the Conjugate

CW/HW CW/HW Complex Numbers Practice Worksheet