[tex]a)0.00000345 \\ 0.00000345 \\ 3.45 \times 10 {}^{ - 6} \\ resposta \\ 3.45 \times 10 {}^{ - 6} \\ b)568200000000 \\ 568200000000 \\ 5.862 \times 10 {}^{11} \\ resposta \\ 5.862 \times 10 {}^{11} [/tex]

A)3,45×10^-^6

B)5,862×10^11