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5.9 Operations with Complex Numbers
TODAY: Graphing complex numbersAbsolute value of Complex NumbersAdding Complex Numbers
MONDAY:Multiplying Complex NumbersPowers of Complex NumbersDividing Complex Numbers with the conjugate
Complex plane horizontal axis represents real numbers vertical axis represents imaginary numbers.
Recall absolute value is distance from 0.
The absolute value of an imaginary number is its distance from 0 along the imaginary axis.
Homework Page 386 (3651, 7074 even)
Graph . 1. 2 3i 2. |5 + 12i|
3. (1 8i) + (4 + 3i)
5.9 YOU DO, Part 1
Simplify.
6. 17 4 + i
5.9 Operations with Complex NumbersTODAY: Graphing complex numbersAbsolute value of Complex NumbersAdding Complex Numbers
MONDAY:Multiplying Complex NumbersPowers of Complex NumbersDividing Complex Numbers with the conjugate
Dividing Complex Numbers Remember: Expressions in simplest form do not have square roots in the denominator. Imaginary units represent square roots, so DENOMINATOR
The conjugate of a + bi is a bi