Functions with logs. Please help! Urgent!
Question attached below.

Question

Functions with logs. Please help! Urgent!
Question attached below.

shadelily · Answer

https://gyazo.com/9505c86118a7cfaa09131d6fb5cfc0c1

3mar · Answer

May I help? @ShadeLily

shadelily · Answer

I was thinking of messaging you for help, but yes that would be great :D

3mar · Answer

Ok
I will not be late for any help.

First of all, you are given an exponential function and it is required to find out its inverse..
right?

shadelily · Answer

Yes. I kind of solved the domain part already. But the last part is the most difficult for me as I dont understand what
 they even want from me

3mar · Answer

Do you mean (b) solve for $f^{-1}(x)$?

shadelily · Answer

1a) i) and b), if possible.

3mar · Answer

a.i
or
a,ii
or
b.
??

Pick the one you want to start with!>>>!

shadelily · Answer

2b as a start

3mar · Answer

WHat 2b????
a.i or a,ii or b

shadelily · Answer

b

shadelily · Answer

Sorry, we generally refer to questions by number and letter, so I didnt realise the miscommunication

3mar · Answer

No problem.
So it is b).
$$\LARGE f^{-1}(x)=\ln \left( \frac{ 1 }{ x } \right)$$

To solve such equation for x, you need to equate it to ZERO and find out the values of x.

Can you do that?

shadelily · Answer

You mean like 
$$f ^{-1} = (3, infinity )$$ ?

3mar · Answer

NO, I don't think so.

What I mean is:>>|dw:1482417531821:dw|
and continue.......