Question

Efetue as seguintes operações:
(Pfv me ajuda)

a)
$\frac{28.10 {}^{6} }{7.10 {}^{2} }$
b)
$2.10 {}^{1} \times 4.10 {}^{3}$
c)
$\frac{18.10 {}^{6} }{3.10 {}^{ - 2} }$
d)
$3.10 {}^{1} \times 2.10 {}^{ - 4}$

Answer 1

28. 10^6
------------ = 4. 10⁴
7 . 10²

2.10¹ × 4.10³ = 8. 10⁴

18 . 10^6
------------ = 6. 10^(6+2) = 6. 10^8
3 . 10-²

3.10¹ × 2.10-⁴ = 6.10^(1-4) = 6. 10-³