chickenlittle008 chickenlittle008
  • 07-09-2021
  • Mathematics
contestada

1. Which expressions
are equal to a real number? Select all that apply
.
a. (-4i)?
b. (-3i) 12
C. (2 + 3i)?
d. (4 + 5i)(4 - 5i)
e. (6 + 8i)(8 + 6i)

1 Which expressions are equal to a real number Select all that apply a 4i b 3i 12 C 2 3i d 4 5i4 5i e 6 8i8 6i class=

Respuesta :

tragiang2002n
tragiang2002n tragiang2002n
  • 07-09-2021

Answer:

real numbers: b, d

Step-by-step explanation:

a, 11 is a odd number --> (-4i)? isn't a real number

b, 12 is a even number --> (-3i)? is a real number

c, (2+3i)? = (-5+12i)? --> isn't a real number

d, (4+5i)(4-5i) = 41 --> is a real number

e, = 100i --> isn't a real number

Answer Link

Otras preguntas

Since mature red blood cells do not contain a nucleus, more room is available for .
Some people that didn't agree with the Puritans were: a.New England Baptists b.the Quakers c.Anne Hutchinson d.all of these e.none of these
Complaints of harassment and discrimination based on sexual orientation will be referred to the commander or ______? a. sarc/ sharp specialist b. va / sharp s
what does alliteration mean
Stress is __________.
If you wanted to learn more about the genetic material of plant and animal cells, where would you look? A. in the lysosomes B. in the nucleus C. inside the
What advances did the Women's Rights Movement make in the 1960s and 1970s? How was the movement similar to those of the Mexican Americans and Native Americans?
how many electron are in 56fe 3
Complete the sentence. When trying to determine the meaning of an unfamiliar word, you should first _____ look for context clues that indicate the word’s me
(3a2 + 2ab + 2b) + (5a2 − 3ab + 9)