a(4;2) ; B(3;5)

It looks like you are providing coordinates for points A and B in a two-dimensional Cartesian coordinate system.

Point A has coordinates (4, 2), which means it is located 4 units along the x-axis and 2 units along the y-axis.

Point B has coordinates (3, 5), which means it is located 3 units along the x-axis and 5 units along the y-axis.

If you need assistance with a specific calculation or problem involving these points, such as finding the distance between them, calculating the midpoint, or determining the slope of the line that passes through them, please let me know!