1. Correct or incorrect ? Why or why not ?
A1. 
× 
  
A2. 
× 
 
× 
 
A3. 
⋅ 
× 
  
⋅ 
× 

A4. 
 
 is a unit vector
A5. 
⋅ 
 

2. If 
 
  
 
 and 
 
 
 , find :
(a) 
⋅ 
  

(b) a unit vector perpendicular to both 
 and 

3. Given three vectors

 
 
 
, 
 
 
, 
 
 

Find:
(a) 
⋅ 
× 

(b) the vector component of 
 along 

4. Find the component of

  
  
 along 
  

흩
A1
介州二 IA5
.
LAS
:
are at
in
vector
:
R.H.SI
scalarAZ.AXB.lt
☒ 乂介
阿its
介乂用
A
④
A3
.
A
.
( 13세 )
B
=
Ho ( 113X4 )
.
자 I
.
=
a
Unit
F
# 1
5
:
=
i 刪刪 sio
-
A11A11731S대0
( A1 X4 )
Moore et
B
.
(
vector
GX A )
incorrect.li
-
A5
=
.
What
:
田乂分
:
A4
0
=
II
is
=
I. 먀
:
inwrrectioY.oscalarprodv.ae
(a)
介一
o
113
( I t 제
=
2
=
111312
∴
a)
2412
=
1A
°
-
B1
似肛
t
-
=
=
5
=
t
1
段点If
1
2
.
( 2I +3 )
1
1
2111312
5)
-
2 ×
I 2
5
-
=
11
.
I3
-
54
.tl/AllBl5mO
Note that A
is
to
A
both
介乂田
I B
.
.
t.IT/ilAxBkTIt5tTE4EFq=IF(I2-I3-f4
)
(a)
☒ x e
131시 介扱 )
=
씨 ( 113세 )
(
A
=
113세
刪二
.
( 113세 )
is
B
0
=
5111311A115m0
=
A
(b)
.
=
I
F
.
to
,
A )
가7t
ht.BA/aB=(4I-It5)oE1I-I
=
( ㅹ 113시13대 )
113xA
=
늘 (4+1) 一戚
)
=
A
=
,
~
④ B
554
거대
-
BNI FOF+
A
.
B
=
=
5
5
B
=
( bipt 2 n + 45
)
54 3
p
.
)
황
( 24 6 =
-