13-18 Express the quantity as a single logarithm. 13. 2 \ln x+3 \ln y-\ln z

Question

13-18 Express the quantity as a single logarithm.
13.
`2 \ln x+3 \ln y-\ln z`

Answer 1

`2 \ln x+ 3 \ln y - \ln z\\\\=\ln x^2 + \ln y^3 - \ln z\\\\=\ln(x^2 y^3) - \ln z\\\\=\ln \left( (x^2y^3)/(z) \right)`