Question

efetue as divisões

12 . 10⁵
3 . 10-³

20 . 10-⁶
5 . 104​

Answer 1

12 . 10⁵
-------------
3 . 10-³
= 4.10^5.10^3
= 4.10^(5+3)
= 4.10^8


20 . 10-⁶
5 . 10^4​
= 4.10^(-6) . 10^(-4)
= 4.10^(-6-4)
= 4 . 10^(-10)