log10 √x + log100 1/x
|loggesetze
= log10 x^0.5 + log100 x^{-1}
= 0.5 log10 x - log100 x
= 0.5 log10 x - log10 x/ log10 100
|100 = 10^2
= 0.5 log10 x - log10 x / 2
= 0.5 log10 x - 0.5 log10 x
= 0
Voraussetzung: x>0, damit der log in R überhaupt definiert ist.