JEE Main 10 April 2015 Paper
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Question : 85 of 90
Marks:
+1,
-0
Let
and
be two unit vectors such that |
+
| = √ 3 .If
=
+ 2
+ 3 (
×
) ,then 2 |
| is equal to :
[Main 10 April 2015]
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