<center> <p><!--CHANGED-IN-BASE--><iframe src="https://cdn.adam.nomadeducation.fr/media/e888228f-1116-4b45-b1ed-1456319f3f5c.mp4" frameborder="0" allowfullscreen="allowfullscreen" data-mce-fragment="1"></iframe><!--/CHANGED-IN-BASE--></p> </center> <p>L&rsquo;article ind&eacute;fini a trois formes :