Pouvez-vous m'aider SVP merci On considère les expressions, calculer C en justifiant : 5 x 10 puissance 2000 C = ---------------------------------------- 20 x 1

          5 x 10 puissance 2000                 5         10 puissance 2000
C = ---------------------------------------- = --------x ------------------------------
           20 x 10 puissance 2001             20         10 puissance 2001
                                                              1
                                                       = ---------  x 10 x ( 2000 -2001)
                                                              4
                                                              1
                                                       =--------- x 10( -1)
                                                              4

C=[tex] \frac{5}{20} * \frac{10^{2000}}{10^{2001}}[/tex]
C=[tex] \frac{1}{4} *10^{2000} *10^{-2001} [/tex]
C= [tex] \frac{1}{4}*10^{2000-2001} [/tex]
C=[tex] \frac{1}{4}*10^{-1} [/tex]
C=0,025