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CBSE XII
>>
Math
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Vector Algebra
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Q)
If
→
a
=
ˆ
i
+
ˆ
j
+
ˆ
k
,
→
b
=
2
ˆ
i
−
ˆ
j
+
3
ˆ
k
and
→
c
=
ˆ
i
−
2
ˆ
j
+
ˆ
k
, find a unit vector parallel to the vector
2
→
a
−
→
b
+
3
→
c
(
A
)
1
√
22
(
3
ˆ
i
+
3
ˆ
j
+
2
ˆ
k
)
(
B
)
1
√
22
(
3
ˆ
i
−
3
ˆ
j
−
2
ˆ
k
)
(
C
)
1
√
22
(
3
ˆ
i
+
3
ˆ
j
−
2
ˆ
k
)
(
D
)
1
√
22
(
3
ˆ
i
−
3
ˆ
j
+
2
ˆ
k
)
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