Bonjour,
a)
[tex]\frac{10 \times 10^{5} \times 10 }{10 ^{2} } = \frac{10^{1 + 5 + 1} }{ {10}^{2} } = \frac{ {10}^{7} }{ {10}^{2} } = {10}^{7 - 2} = {10}^{5} [/tex]
c[tex] \frac{ {3}^{4} \times {3}^{2} }{3 \times 3^{5} } = \frac{ {3}^{6} }{ {3}^{6} } = {3}^{6 - 6} = {3}^{0} = 1[/tex]
b)
[tex] \frac{ {5}^{3} \times {5}^{4} }{5 \times {5}^{2} } = \frac{ {5}^{7} }{ {5}^{3} } = {5}^{7 - 3} = 5 ^{4} [/tex]
d)
[tex] \frac{ {10}^{3} \times {10}^{2} }{10 \times {10}^{4} } = \frac{ {10}^{5} }{ {10}^{5} } = 1[/tex]
