Lalaxi3297 Lalaxi3297
  • 22-10-2019
  • Mathematics
contestada

40. Rewrite each expression as an equivalent expression containing only one logarithm.
b. ln(xy) − ln(x/y)

Respuesta :

pedrocarratore
pedrocarratore pedrocarratore
  • 22-10-2019

Answer:

ln(xy) - ln(x/y) = 2ln(y)

Step-by-step explanation:

To solve this problem one must have knowledge about properties of logarithmic functions.

According to the product property:

[tex]ln(xy) = ln(x) + ln (y)[/tex]

According to the quotient property:

[tex]ln(x/y) = ln(x) - ln (y)[/tex]

Combining both properties it is possible to rewrite the expression as:

[tex]ln(xy) - ln(x/y) = ln(x) + ln (y) - (ln(x) - ln(y))[/tex]

[tex]ln(xy) - ln(x/y) = 2ln (y) [/tex]

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