Q.01
Determine whether
and
are inverse functions.
Solution:
(a)
and
are inverse functions.
(b)
and
are not inverse function
(c)
and
are inverse functions.


(b)


(c)


Q.09
Find a formula for
.
Solution:


Q.10
Find a formula for
.
Solution:



Q.11
Find a formula for
.
Solution:



Q.12
Find a formula for
.
Solution:



Q.13
Find a formula for
.
Solution:




Q.14
Solution:



Q.15
Solution:

It will be solved for the domains
and
separately.


and
Range: 

solving for 



From (1) and (2) we have


Interchanging
and


