bmiles2018 bmiles2018
  • 05-02-2018
  • Mathematics
contestada

What is the absolute value of the complex number -4 - sqrt2i?
A) sqrt14
B) 3sqrt2
C) 14
D)18

Respuesta :

evgeniylevi
evgeniylevi evgeniylevi
  • 05-02-2018
Try this:
if a complex number is z=x+iy, where x=-4 and iy=-i√2, then:
[tex]|z|= \sqrt{x^2+(iy)^2}= \sqrt{16-2}= \sqrt{14}[/tex]
Answer Link

Otras preguntas

what is 5.71 rounded to the nearest whole number
Sacha has 4 quarters in her pocket.she has 6 timés as many quarters in her piggy Bank. Draw a picture to show thenumber of quarters sacha has in her piggy Bank.
If the circumference of a baseball is 24 cm what is the volume of the object
How was society organized in the Middle Ages?
How do you solve x²-10x+9=0 by completing the square?
Who do you think snitched on Anne Frank and her family?
How many hawksbill turtles are left in the world?
How much energy is contained in the mass of a 60-kilogram person?
a bicycle wheel travels about 82 inches in 1 full rotation. What is the diameter of the wheel, to the nearest inch? (use 3.14 for pi)
fun facts about Uranus the planet?