How do you simplify Log_10 (1/100) - log_10 (1/1000) log10(1100)log10(11000)?

1 Answer
Apr 30, 2018

11

Explanation:

We know that,

color(red)((1)1/(a^n)=a^(-n)(1)1an=an

color(blue)((2)log_a x^n=nlog_a x(2)logaxn=nlogax

color(violet)((3)log_a a=1(3)logaa=1

Let

L=log_10(1/100)-log_10(1/1000)L=log10(1100)log10(11000)

=log_10color(red)((1/(10^2)))-log_10 color(red)((1/(10^3))...toApply(1))

=log_10(10^color(blue)((-2)))-log_10(10^color(blue)((-3)))...tocolor(blue)(Apply(2))

=color(blue)(-2)log_10 10-color(blue)((-3))log_10 10

=-2color(violet)((1))+3(color(violet)(1))...tocolor(violet)(Apply(3)

=-2+3

=1