Presentation on theme: "Complex Numbers – Add, Subtract, Multiply, and Divide Addition of complex numbers is given by: Example 1:"— Presentation transcript:
Complex Numbers – Add, Subtract, Multiply, and Divide Addition of complex numbers is given by: Example 1:
It is good to leave out the middle step and to work the problem completely in your head. Example 2: It is perfectly fine to think of addition of complex numbers as adding binomials, but remember that i is not a variable, but an imaginary number.
Subtraction of complex numbers is given by: Example 3:
Again, not all the steps were necessary, and learning to work the problem quickly in your head is good. Example 4:
Multiplication of complex numbers is given by: It is often easier to think of multiplication of complex numbers using the foil pattern for binomials, even though these are numbers and not true binomials. Again, remember that i is not a variable, but an imaginary number
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