jordanm82899 jordanm82899
  • 03-01-2018
  • Mathematics
contestada

What is the absolute value of the complex number -4- sqrt 2i? A) sqrt 14 B) 3sqrt2 C)14 D)18

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wizard123
wizard123 wizard123
  • 03-01-2018
Remember the pythagorean theorem.

a^2 + b^2 = c^2

The complex number is a+bi,  the absolute value is 'c'

[tex]|-4-\sqrt{2} i| = \sqrt{(-4)^2 + (-\sqrt{2})^2} = \sqrt{16+2} = \sqrt{18} = 3\sqrt{2}[/tex]
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baebt3 baebt3
  • 03-01-2021

Answer:the answer is B: 3v/2

Step-by-step explanation:

Answer Link

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