Bjr
B =
[tex] \frac{7 \times 10 {}^{15} \times 8 \times 10 {}^{ - 8} }{5 \times 10 {}^{ - 4} } [/tex]
B =
[tex] \frac{56 \times 10 {}^{15} \times 10 {}^{ - 8} }{5 \times 10 {}^{ - 4} } [/tex]
B =
[tex] \frac{56 \times 10 {}^{15 - 8} }{5 \times 10 {}^{ - 4} } [/tex]
B =
[tex] \frac{56 \times 10 {}^{7} }{5 \times 10 {}^{ - 4} } [/tex]
B =
[tex] \frac{5.6 \times 10 {}^{8} }{5 \times 10 {}^{ - 4} } [/tex]
B =
[tex] \frac{5.6}{5} \times \frac{10 {}^{8} }{10 {}^{ - 4} } [/tex]
B =
[tex]1.12 \times \frac{10 {}^{8} }{10 {}^{ - 4} } [/tex]
B =
[tex]1.12 \times 10 {}^{8 - ( - 4)} [/tex]
B =
[tex]1.12 \times 10 {}^{8 + 4} [/tex]
B =
[tex]1.12 \times 10 {}^{12} [/tex]
Soit
[tex]1120000000000[/tex]
Voilà !
