Calculate the length of the line segment [AB] and state the special position of this line segment in the coordinate system. (for verification: $\overline { \mathrm { AB } } = \sqrt { 2 }$ )
Calculate the length of the line segment [AB] and state the special position of this line segment in the coordinate system.\\
(for verification: $\overline { \mathrm { AB } } = \sqrt { 2 }$ )