bonjour voici la réponse
[tex]3.45 > 3.449[/tex]
[tex]3.45 \times 10 {}^{13} > 3.449 \times 10 {}^{13} [/tex]
a)
1)
[tex] - 2576 \times 10 {}^{11} = - 257600000000000[/tex]
[tex] - 25.762 \times 10 {}^{13} = - 257620000000000[/tex]
donv
[tex] - 25.762 \times 10 {}^{13} > - 2576 \times 10 {}^{11} [/tex]
2)
[tex]456.5 \times 10 {}^{ - 19} = 0.00000000000000004565[/tex]
[tex]0.56 \times 10 {}^{ - 16} = 0.000000000000000056[/tex]
donc
[tex]456.5 \times 10 {}^{ - 19} > 0.56 \times 10 {}^{ - 16} [/tex]
