1.
Let
and
. Find
.
A.
B.
C.
D.
Hint
2.
Let
. Find
.
A.
B.
C.
D.
Hint
3.
A vector that has a magnitude of one is called a _____.
A.
unit vector
B.
scalar
C.
resultant
D.
magnitude
Hint
4.
Write
as a sum of unit vectors for
A
(3, -1) and
B
(8, 6).
A.
B.
C.
D.
Hint
5.
If
, then
= _______.
A.
B.
C.
D.
Hint
as a sum of unit vectors for A(3, -1) and B(8, 6).