WBJEE 2018 Math Solved Paper

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Question : 58 of 75
 
Marks: +1, -0
α
=
i
+
j
+
k
,
β
=
i
j
k
and
γ
=
i
+
j
k
be three vectors. A vector
δ
, in the plane of
α
and
β
, whose projection on
γ
is
1
3
, is given by
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