http://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/part-b-optimization-related-rates-and-newtons-method/problem-set-4/
4)dans l'exercice 2-A4
http://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/part-b-optimization-related-rates-and-newtons-method/problem-set-4/MIT18_01SC_pset2prb.pdf
http://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/part-b-optimization-related-rates-and-newtons-method/problem-set-4/MIT18_01SC_pset2sol.pdf
je ne comprend pas ou je me trompe, si quelqu'un a la gentillesse de me l'expliquer
d'avance merci.
oups