Bonsoir,
[tex] \dfrac{1}{10} =0.1 \ il\ y\ a\ 0\ z\'ero\ apr\`es\ le\ point\\ \dfrac{1}{10^2} =0.01\ il\ y\ a\ 1\ z\'ero\ apr\`es\ le\ point\\ \dfrac{1}{10^3} =0.001\ il\ y\ a\ 2\ z\'eros\ apr\`es\ le\ point\\ \dfrac{1}{10^4} =0.0001\ il\ y\ a\ 3\ z\'eros\ apr\`es\ le\ point\\ \dfrac{1}{10^5} =0.00001\ il\ y\ a\ 4\ z\'eros\ apr\`es\ le\ point\\\\ \dfrac{1}{10^{15}} =0.000000000000001\ il\ y\ a\ 14\ z\'eros\ apr\`es\ le\ point\\ \\ \dfrac{10^5+1}{10^5} =\dfrac{10^5}{10^5}+\dfrac{1}{10^5}\\\\
=1+0.00001=1.00001
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c)
[tex] \dfrac{10^{15}+1} {10^{15}}=1.000000000000001\ il\ y\ a\ 14\ z\'eros\ apr\`es\ le\ point\\\\
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