Respuesta :
The best way to think of complex numbers is through x and y coordinates, if a number is just on its own (real) think of it as the x ordinate. Conversely if the number is say 2i (imaginary), just think of it as the y=2.
So 4+2i - (1-7i) = 4+2i-1+7i = (4-1) + i(2+7) = 3 +9i
That can be though of as (3,9). A complex number is just two separate real numbers, a real part and an imaginary part.
So 4+2i - (1-7i) = 4+2i-1+7i = (4-1) + i(2+7) = 3 +9i
That can be though of as (3,9). A complex number is just two separate real numbers, a real part and an imaginary part.
The value of the complex expression will be 3 + 9i. Then the correct option is C.
What is a complex number?
The complex number is the combination of the real part and the imaginary part.
Then the complex number is given as
⇒ a+bi
The complex expression is given below.
⇒ (4 + 2i) and (1 − 7i)
Then the difference between the complex number will be
⇒ (4 + 2i) - (1 - 7i)
Simplify the complex expression, then the complex expression will be
⇒ (4 + 2i) - (1 - 7i)
⇒ 4 + 2i - 1 + 7i
⇒ 3 + 9i
The value of the complex expression will be 3 + 9i.
Then the correct option is C.
More about the complex number link is given below.
https://brainly.com/question/10251853
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