In the plane rectangular coordinate system, the coordinate of point a is (3,0), and point B is a point on the positive half axis of X axis. Point C is a point in the first quadrant, and AC is 2. Let Tan angle BOC = m, then the value range of M is?

In the plane rectangular coordinate system, the coordinate of point a is (3,0), and point B is a point on the positive half axis of X axis. Point C is a point in the first quadrant, and AC is 2. Let Tan angle BOC = m, then the value range of M is?

It should be 2 / 3 maximum and 0 minimum