ABBA
What is unit vector in the diredion of the
vector A24; +31
Answers
Answer:
Explanation:
Given
a
−2
i
^
+3
j
^
+
k
^
=2
i
^
+3
j
^
+1
k
^
Magnitude of
a
−
2
2
+3
2
+1
2
∣
a
∣=
4+9+1
=
14
.
Unit vector in direction of
a
=
magnitudeof
a
1
×
a
a
=
14
1
[2
i
^
+3
j
^
+1
k
^
]
a
=
14
2
i
^
+
14
3
j
^
+
14
1
k
^
Thus, unit vector in direction of
a
14
2
i
^
+
14
3
j
^
+
14
1
k
^
.Given
a
−2
i
^
+3
j
^
+
k
^
=2
i
^
+3
j
^
+1
k
^
Magnitude of
a
−
2
2
+3
2
+1
2
∣
a
∣=
4+9+1
=
14
.
Unit vector in direction of
a
=
magnitudeof
a
1
×
a
a
=
14
1
[2
i
^
+3
j
^
+1
k
^
]
a
=
14
2
i
^
+
14
3
j
^
+
14
1
k
^
Thus, unit vector in direction of
a
14
2
i
^
+
14
3
j
^
+
14
1
k
^
.