WBJEE 2025 Math Paper

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Question : 50 of 75
 
Marks: +1, -0
Let
→
a
,
→
b
,
→
c
be unit vectors. Suppose
→
a
â‹…
→
b
=
→
a
â‹…
→
c
=0
and the angle between
→
b
and
→
c
is ‌
Ï€
6
. Then
→
a
is
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