KEAM 2016 Math Paper

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Question : 68 of 120
 
Marks: +1, -0
→
a
=2
⋀
i
−
⋀
j
−m
⋀
k
and
→
b
=
4
7
⋀
i
−
2
7
⋀
j
+2
⋀
k
are collinear, then the value of m is equal to
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