Question

(PUC-SP)O valo da expressão
C=(10^-3×10^5)÷(10×10^4)é:

Answer 1

$C=({10}^{-3}\times{10}^{5})\div(10\times{10}^{4})$

$C=({10}^{-3+5}) \div({10}^{1+4})$

$C={10}^{2}\div{10}^{5}={10}^{2-5}\\={10}^{-3}$

Answer 2

Explicação passo-a-passo:

$c = \dfrac{(10 {}^{ - 3} \times 10 {}^{5}) }{(10 \times 10 {}^{4} )}$

$c = \dfrac{10 {}^{ - 3 + 5} }{ 10 {}^{1 + 4} }$

$c = \dfrac{10 {}^{2} }{10 {}^{5} }$

$c = 10 {}^{2 - 5}$

$c = > 10 {}^{ - 3}$