First empty: when p is on the y axis.
The distance to x=- 1 is fixed, that is, 1.
Then the distance between p and a is 2.
You can get the coordinates of point P (0, √3)(0, -√3).
The second space: Mongolian
The coordinates of point P can meet the requirements of the topic (1, 1).
When B coincides with P, that is, B( 1, 1).
The minimum value of /PA/+/PB/ is 1.
B will be greater than 1 when taking other points.
I think it's quite simple. Don't know right
Ha ha laugh