Question

What is the absolute value of the complex number -4 -√2i ?

Answer 1

the answer is b. 3 sqrt 2

Explanation:

I took the test on edge

Answer 2

`3√(2)`

Explanation:

We need to find the absolute value of the complex number -4 -√2i

to find absolute value of any complex number we use formula

|a+bi| =
`√(a^2+b^2)`

-4 -√2i , here a=-4 and b=-sqrt(2)

`|-4-√(2)i|} =\sqrt{(-4)^2+(-√(2))^2}`

=
`√(16+2)`

=
`√(18)`

=
`3√(2)`