WBJEE 2021 Math Solved Paper

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CATEGORY - I (Q:1 to Q50)
Carry 1 mark each and only one option is correct. In case of incorrect answer or any combination of more than one answer, ¼ mark will be deducted.
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Question : 7 of 75
 
Marks: +1, -0
Let
→
α
,
→
β
,
→
γ
be three non-zero vectors which are pairwise non-collinear. If
→
α
+3
→
β
is collinear with
→
γ
and
→
β
+2
→
γ
is collinear with
→
α
, then
→
α
+3
→
β
+6
→
γ
is
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