Graphics Reference
In-Depth Information
ƒ ABS
ABS ƒ
Figure6.9
-1
1
Figure6.10
52 Since
r
is continuous at
f
(
a
),
r
f
is continuous at
a
, by qn 40.
If (
a
))
f
(
a
) since
f
is continuous at
a
. Now, by qns
3.65 and 3.66, the reciprocal rule, (1/
f
(
a
)
a
then (
f
(
a
))
1/
f
(
a
) since
f
(
a
)
0. Thus
1/
f
is continuous at
a
.
53 If
g
(
x
)
x
x
and
h
(
x
)
x
1, thefunction is
g
· (
r
h
).
