1.
A.
B.
C.
[10 37]
D.
Hint
2.
State whether the product of
A
3 × 4
and
B
3 × 4
is defined, and if it is defined, state the dimensions.
A.
undefined
B.
defined, 4 × 3
C.
defined, 3 × 4
D.
defined, 9 × 16
Hint
3.
Find the product of
A.
B.
C.
D.
Hint
4.
Which of the following is true concerning matrix multiplication of three matrices
A
,
B
, and
C
?
A.
AB
=
BA
for all cases
B.
(
A
+
B
)
C
=
CA
+
CB
C.
AB
=
BA
for no cases
D.
C
(
A
+
B
) =
CA
+
CB
Hint
5.
Which of the following properties does not hold for matrices?
A.
commutative property of multiplication
B.
associative property of multiplication
C.
right distributive property
D.
left distributive property
Hint