Complex Numbers Operations with Complex Numbers What is the Imaginary Unit?

Complex Numbers

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