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

Why are silver, lead, and mercury so special? (why do they always precipitate out and never dissolve) PLEASE BE DETAILED BUT SIMPLE
think of three things in life that would be easier for an adult and three things thag would be harder.
Are these correct? I don’t completely understand the last question.
The width of a rectangle is shown below: A coordinate plane with a point A at negative 3, 3 and C at negative 3, negative 2. If the area of the rectangle to b
why did president andrew johson say he vetoed the civil rights act of 1866 ?
At 37 c and 760 mm hg pressure, 0.023 ml of o2 can be dissolved in 1 ml of plasma, whereas at the same temperature and pressure, 0.510 ml of co2 will dissolve i
Which statement describes how Earth compares to the moon? A. Earth has more inertia than the moon. B.The moon has more gravitational pull than Earth. C.The mo
"4.57 billion years of geologic time with a roll of masking tape so that 1 inch represents 1 million years, how long would the tape have to be" (ludman 20)ludma
What is the length of xy?
The pleasure satisfaction or happiness obtained from consuming a good or service is known as