Argument and Modulus for Complex Numbers

The modulus of a complex number is:

• the distance of the complex number from the origin

• the angle measured anticlockwise from the horizontal axis

• the remainder after dividing by a factor

• the polar form of a complex number

• 6.33

• 9.49

• 12.49

• 3.33

For the number 3+4i the argument measured in degrees would be

• between 0 and 90°

• between 0 and -90°

• between 90° and 180°

• between -90° and -180°

For the number 2-3i the argument measured in degrees would be

• between 0 and 90°

• between 0 and -90°

• between 90° and 180°

• between -90° and -180°

Find the modulus and amplitude for the following complex numbers :

The modulus of a complex number is _____________________.

• the location of the point of the complex number on the graph.

• the distance from the origin to the point of the complex number on the graph.

• the value of the point of the complex number on the graph.

What is the modulus of the complex number (3 + 4i)?

• 10

• 5

• 7

• 2