Current location - Training Enrollment Network - Mathematics courses - How to change the complex number three steps in senior high school mathematics?
How to change the complex number three steps in senior high school mathematics?
Well, the complex yoke has the following properties:

1.x*** yoke +y*** yoke =(x+y)*** yoke.

Because (x +y) * * yoke, its real part is x real part+y real part, and its imaginary part is x*** yoke imaginary part +Y * * yoke imaginary part.

2.x*x*** Yoke = | X | 2

Because let x=a+bi, then x*** yoke =a-bi is obtained by (a+bi) (a-bi) = a 2+b 2 = | x | 2.

Therefore, these three steps are established. |z+ 1|^2

= 1, which can be understood as the square of the distance from Z to (-1, 0) is 1, that is, the distance from Z to it is 1, so the trajectory is centered at (-1, 0) and the radius is 1