Complex NumbersOperations with Complex Numbers What is the
Imaginary Unit?Try it!
What are imaginary and complex numbers?A complex number is a
number composed of a real number and an imaginary number.
Examples of Complex NumbersA complex number is always written in
standard form : a + bi, where a is the real part and bi is the
imaginary part. 2 + 3i5 5i
Plotting Complex Numbers
The x-axis is all the real numbersThe y-axis is all the complex
numbers.Plotting Complex Numbers4 + 2i-1 + i- 4i36 3i
Adding and Subtracting Complex Numbers
Steps for Adding and Subtracting Complex NumbersStep 1: Identify
and combine like termsStep 2: Perform stated operationAbsolute
Value of a Complex NumberLets try it!Find the absolute value of the
complex number 3 + 4i.ClassworkAccess on the OLC ORComplete on
paper
