BlackJack6666 BlackJack6666
  • 22-10-2019
  • Mathematics
contestada

Write as a single logarithm.
ln(5) + 3/5 ln(32) − ln(4)

Respuesta :

carlos2112
carlos2112 carlos2112
  • 22-10-2019

Answer:

[tex]ln(10)[/tex]

Step-by-step explanation:

Let's rewrite the expression as a single logarithm using the next propierties:

[tex]log(x*y)=log(x)+log(y)\\y*log(x)=log(x^{y} )\\log(\frac{x}{y} )=log(x)-log(y)[/tex]

So:

[tex]ln(5)+ln(32^{\frac{3}{5} } )-ln(4)[/tex]

Where:

[tex]32^{\frac{3}{5} }=\sqrt[5]{32^{3} } =\sqrt[5]{32768} =8[/tex]

Therefore:

[tex]ln(5)+ln(8)-ln(4)=ln(5*8)-ln(4)=ln(\frac{8*5}{4})=ln(\frac{40}{4})=ln(10)[/tex]

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