1.
Find the inner product of
and
if
and
.
A.
-20
B.
12
C.
-12
D.
20
Hint
2.
Which pair of vectors is perpendicular?
A.
,
B.
,
C.
,
D.
,
Hint
3.
Two vectors
and
are perpendicular if ________.
A.
their cross product equals zero
B.
their inner product equals zero
C.
their dot product is equal to their cross product
D.
their inner product is
v
1
w
1
+
v
2
w
2
Hint
4.
Evaluate
if
and
.
A.
-39
B.
60
C.
44
D.
21
Hint
5.
Find
if
and
.
A.
B.
C.
D.
Hint