Réponse:
a)
[tex] \frac{ {10}^{7} }{ {10}^{6} } = {10}^{7 - 6} = {10}^{1} [/tex]
b)
[tex] \frac{ {10}^{3} }{ {10}^{9} } = {10}^{3 - 9} = {10}^{ - 6} [/tex]
c)
[tex] \frac{ { 10}^{ - 5} }{ {10}^{4} } = {10}^{ - 5 - 4} = {10}^{ - 9} [/tex]
d)
[tex] \frac{ {10}^{5} }{ {10}^{ - 4} } = {10}^{5 + 4} = {10}^{9} [/tex]
