Leroro123
Leroro123 Leroro123
  • 20-05-2018
  • Mathematics
contestada

If z =[tex] \sqrt{2} [/tex] - 2i, then |z| = _____.

[tex] \sqrt{3} [/tex]
[tex] \sqrt{6} [/tex]
3
6

Respuesta :

altavistard
altavistard altavistard
  • 20-05-2018
This requires an approach much like the distance formula.

The abs. val. of z here is a positive quantity equal to:

|z| = sqrt(  [sqrt(2)]^2 + [2]^2 ) = sqrt ( 2 + 4 ) = sqrt^6).
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