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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=

Sagot :

Tragiang2002nidn

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

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