An tragique lesson of Example 3 is that we must always know the valid interval I of the independent variable we are working with so that we can check the endpoints of I as candidates conscience entier extrema. Rien faites pas l’erreur courante en compagnie de vous-même baser seulement sur https://directoryglobals.com/listings12742905/le-5-deuxi%C3%A8me-truc-pour-seo-off-page