radius

2

Round.

|z-2+2i|=|(a-2)+(b+2)i|= radical sign [(a-2) 2+(b+2) 2]

ask

Value,

Seek a circle

main points

(2,-2)

Distance.

show

(2,-2)

Diameter and circle

The intersection point is satisfied.

straight line

travel

: b=-a substitution

Formula: A 2+A 2 = 4

A=(+/-) root number 2.

a=-

Square root of 2

Value,

: radical number [(-radical number 2-2) 2+ (radical number 2+2) 2] = 2+2 radical number 2.