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