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Byju's Answer
Standard XII
Mathematics
Angle between Two Lines
The angle bet...
Question
The angle between the vectors
→
a
=
^
i
+
^
j
−
^
k
a
n
d
→
b
=
^
i
+
^
j
+
^
k
is
A
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B
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C
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D
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Solution
The correct option is
B
c
o
s
−
1
⎛
⎜
⎝
→
a
.
→
b
∣
∣
∣
→
a
|
|
→
b
|
)
⎞
⎟
⎠
=
c
o
s
−
1
(
1
3
)
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0
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Q.
In
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H
4
molecule, there are four
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^
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Q.
If
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Q.
If
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and
→
B
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→
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