In this tutorial you are introduced to the modulus and argument of a complex number.

Find the modulus and argument of the following:

  1.     \[z = 3 + 4i\]

  2.     \[z =  - 5 + 12i\]

  3.     \[z = 5 - 12i\]

  4.     \[z =  - 3 - 4i\]