italiahyatt italiahyatt

08-11-2020
Mathematics

contestada

What is the square of the complex number (i - 2)?
Select one:
O A. -4- 4i
O B. -4
O C. 3 – 4i
O D. 4- 4i
O E. 4+4i

Respuesta :

virtuematane virtuematane

08-11-2020

Answer:

Step-by-step explanation:

Square of (i-2)=(i-2)^2

=i^2-4i+4

Since i^2=-1

So

=i^2-4i+4

=-1-4i+4

=3-4i

Answer is 3-4i( option c)

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