5. Trigonometric Form of a Complex Number
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Recall the trigonometric form of a complex number.
modulus
We are asked to complete the following statement.
The of a complex number a+bi is the distance between the origin (0,0) and the point (a,b). |
Now, let's find the distance between the origin and an example complex number using the Pythagorean Theorem.
We found that the distance, which is also called the modulus, is sqrt(2^2+3^2). Let's finish the given statement.
The modulus of a complex number a+bi is the distance between the origin (0,0) and the point (a,b). |