xy sin
(One to one)
xy
1
sin
Domain
2
,
2
1,1
Range
1,1
2
,
2
Now look at
1)
xx
)(sinsin
1
if
x
2
,
2
2)
xx
)sin(sin
1
if
x
1,1
xy cos
(One to one)
xy
1
cos
Domain
,0
1,1
Range
1,1
,0
Again,
3)
xx
)(coscos
1
if
x
,0
4)
xx
)cos(cos
1
if
x
1,1
xy tan
(One to one)
xy
1
tan
Domain
2
,
2
,
Range
,
2
,
2
Now look at
5)
xx
)(tantan
1
if
x
2
,
2
6)
xx
)tan(tan
1
if
x
,
In both cases x must
belong to the range of
the outer function.
Here also in both cases
x must belong to the
range of the outer
function.
Once again, in both
cases x must belong to
the range of the outer
function.
