Question

What is lnx+2lny−lnz written as a single logarithm?

Answer 1

ln
`(xy^(2) )/(z)`

Explanation:

just took the test :D

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Answer 2

`\ln x+2\ln y-\ln z=\ln x+\ln y^2-\ln z=\ln(xy^2)/(z)\\\\Used:\ln a+\ln b=\ln(a\cdot b}\\\\\ln a-\ln b=\ln(a)/(b)\\\\n\ln a=\ln a^n`