UPSC NDA I 2012 Mathematics Paper

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Question : 97 of 120
 
Marks: +1, -0
What is the value of m if the vectors 2
∧
i
−
∧
j
+
∧
k
,
∧
i
+2
∧
j
−3
∧
k
and 3
∧
i
+m
∧
j
+5
∧
k
are coplanar?
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