MA 123
Quiz#1
Arazyan, Spring 2008
Student Name _________Key_____
Discussion Section #___
BU ID#_______________
Show all your work for full credit.
1.
(12 points)
Given
9
)
(
2

=
x
x
f
,
x
x
g
cos
)
(
=
, and
3
)
(
x
x
h
=
. Find
h
g
f
,
h
f
g
, and
f
h
g
.
Simplify your answer if possible.
9
)
(cos
)
(cos
))
(
(
2
3
3
3

=
=
=
x
x
f
x
g
f
h
g
f
OR
9
cos
3
2

x
)
9
cos(
)
9
)
((
))
(
(
6
2
3
3

=

=
=
x
x
g
x
f
g
h
f
g
3
2
3
2
2
)
9
cos(
)
)
9
((
))
9
(
(

=

=

=
x
x
g
x
h
g
f
h
g
2.
(8 points)
Describe how the graph of
2

5

3
)
(
+
+

=
x
x
h
is related to the graph of
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This note was uploaded on 04/07/2008 for the course CALC MA 123 taught by Professor Arayzan during the Spring '08 term at BU.
 Spring '08
 Arayzan
 Calculus

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