Réponse:
c)
[tex] { ({10}^{ - 5} )}^{2} = {10}^{ - 5 \times 2} = {10}^{ - 10} [/tex]
a)[tex]100 \times {10}^{ - 4} \times {10}^{6} = {10}^{2} \times {10}^{ - 4} \times {10}^{6} = {10}^{2 - 4 + 6} = {10}^{4} [/tex]
b)
[tex] \frac{100 \: 000}{ {10}^{7} } = \frac{ {10}^{5} }{ {10}^{7} } = {10}^{5 - 7} = {10}^{ - 2} [/tex]
