The complex numbers corresponding to the endpoints of one diagonal of a square drawn on a complex plane are 1 + 2i and -2 – i. what are the complex numbers corresponding to the endpoints of the square's other diagonal?

On the complex plane, the number is mapped onto the point with coordinates .

In other words, the x coordinate is the real part of the number, while the y coordinate is the complex part of the number.

Viceversa, if you start from a point , you can identify the number .

So, the endpoints of the diagonal are the points and . These are points A and C in the attached figure.

This means that points B and D have coordinates

So, the correspondant complex numbers are

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column