UPSC NDA II 2014 Mathematics Paper
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Question : 96 of 120
Marks:
+1,
-0
For what value of λ are the vectors λ
+ ( 1 + λ )
+ ( 1 + 2 λ )
and ( 1 − λ ) i + λ
+ 2
perpendicular ?
[NDA II 2014]
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