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Byju's Answer
Standard XII
Physics
Vector Component
The vectors ...
Question
The vectors
A
=
3
i
−
k
,
B
=
i
+
2
j
are adjacent sides of a parallelogram. Find the area.
A
√
17
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B
√
29
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C
√
31
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D
√
41
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Solution
The correct option is
C
√
41
Area of parallelogram is
=
→
A
×
→
B
=
(
3
i
+
0
j
−
k
)
×
(
i
+
2
j
+
0
k
)
=
2
i
−
j
+
6
k
Hence
→
A
r
e
a
=
2
i
−
j
+
6
k
|
→
A
r
e
a
|
=
|
2
i
−
6
j
+
k
|
=
√
41
sq units.
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