The series of exercises is not finished; you have to finish it
to obtain a score. If you confirm that you wish to to abandon,
the work already made on the series will then be lost and there will be a new statement
for the same series of exercises.

Do you confirm?

This is exercise number 1 in a series of 7 exercises.

Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.

- Description: exercices à destination des élèves de lycée. interactive exercises, online calculators and plotters, mathematical recreation and games
- Keywords: interactive mathematics, interactive math, server side interactivity, mathematics, geometry, vectorial_geometry, 3_shape, plane_equation, normal_vector