QUESTION 1
The given function is
To find the inverse function, we let
This implies that,
This will give us,
We multiply through by 3 to obtain;
We now interchange x and y to obtain,
We make y the subject to obtain,
This implies that,
Therefore,
QUESTION 2
The given function is
To find the inverse function we let
We then interchange x and y to obtain,
We solve for y to obtain,
Therefore the inverse function is
Hence,
QUESTION 3.
The given function is
We want to find the inverse so we let
We now interchange x and y to obtain,
We now make y the subject, by first taking the cube of both sides of the equation.
Divide through by 2 to get,
Or
This implies that,
Therefore
QUESTION 4
The given function is
We let
Interchange x and y to get,
Make y the subject to get,
This implies that,