Question

Find the magnitude of -3i.A. 3iB. √3C.-3D. 3

Answer 1

Given:

`-3i`

Required:

To find the magnitude of a given number.

Step-by-step explanation:

Consider

`0-3i`

The magnitude is

`\begin{gathered} =√(0^2+(-3)^2) \\ \\ =√(9) \\ \\ =3 \end{gathered}`

Final Answer:

The option D is correct.

`3`