(a)
\The functions are
and
.
The domain of
is
.
The domain of
is
.
Domain of the
is
.
indicates that
is excluded from in the domain of
.
Definition of composite function :
.
Find
.

Domain of the composite function
is
.
(b)
\Domain of the
is
.
indicates that
is excluded value in the domain of
.
Find
.


Domain of the composite function
is
.
(c)
\Domain of the
is
.
indicates that
is excluded value in the domain of
.
Find
.



.
Domain of the composite function
is
.
(d)
\Domain of the
is
.
indicates that
is excluded value in the domain of
.
Find
.



.
Domain of the composite function
is
.
(a) Domain of the composite function
is
.
(b) Domain of the composite function
is
.
(c) Domain of the composite function
is
.
(d) Domain of the composite function
is
.