Respuesta :
d.) The complex numbers have opposite real numbers.
Example:
a = 3 + 20i and b = -3 + 14i
a + b = 3 + 20i + (-3) + 14i = 34i
Example:
a = 3 + 20i and b = -3 + 14i
a + b = 3 + 20i + (-3) + 14i = 34i
Answer:
Option d is correct.
Step-by-step explanation:
In general, a complex number is written as, [tex]a+ib[/tex] where a is real part and b is imaginary part.
Now, two complex numbers are added and their sum is [tex]34i[/tex] which can also be written as [tex]0+34i[/tex]. Here, the real part is zero.
It is also given that the real part of the complex number is not zero in both the cases.
Let us consider two complex numbers [tex]a+ib[/tex] and [tex]c+id[/tex].
Add the two complex numbers:
[tex](a+ib)+(c+id)=(a+c)+i(b+d)[/tex]
Now, the real part should be zero only when [tex]a=-c[/tex].
Therefore, the complex numbers must have opposite real part or numbers. Option d is correct.
For more details, refer the link:
https://brainly.com/question/20566728?referrer=searchResults