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posledela
3 years ago
11

What is the correct inverse function for f(x)=ln(3x)?

Mathematics
2 answers:
Maslowich3 years ago
5 0

Let y = f(x)

y = ln(3x)

Exchange place with x and y.

x = ln(3y)

Solve for y.

y = (e^x)/3

Replace y with the inverse notation.

f^(-1) x = (e^x)/3

Done.



aleksandrvk [35]3 years ago
4 0

Answer:

f^{-1}(x)= \frac{e^x}{3}

Step-by-step explanation:

f(x)= ln(3x)

First we replace f(x) with y

y=ln(3x)

Now , interchange the variables x  and y

x= ln(3y)

Solve the equation for y

We know ln has base 'e'

e^x = 3y

divide by 3 on both sides

y= \frac{e^x}{3}

f^{-1}(x)= \frac{e^x}{3}

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