Question

sabendo que x = (0,00002)⁻² e y = (0,0004)⁻¹ , calcule:

a)x/y

b)y/x

Answer 1

x= (2/100000)^-2  mas 100000= 10^6
y= (4/10000)^-1  mas 10000= 10^5

* a^-1= 1/a portanto

x= (10^6)^2/ 2^2
y= (10^5)^1/ 4^1

x= 10^12/ 4
y= 10^5/ 4

A) x/y= 10^12/4 / 10^5/4= 10^12/10^5= 10^7
B) y/x= 10^5/10^12= 10^-7 ou 1/10^7