1.
Find the value of
A.
-2
B.
2
C.
0
D.
14
Hint
2.
Find the dimensions of
A
6 × 3
·
B
3 × 1
.
A.
3 × 3
B.
3 × 1
C.
6 × 1
D.
6 × 3
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.
(
A
+
B
)
C
=
CA
+
CB
B.
AB
=
BA
for all cases
C.
C
(
A
+
B
) =
CA
+
CB
D.
AB
=
BA
for no cases
Hint
5.
Given that
and
use the fact that
to find
AB
+
AC
.
A.
B.
C.
D.
Hint