JEE Advanced Mathematics question
If are three noncoplanar vectors represented by concurrent edges of a parallelepiped of volume 4 then
(+)·(×) + (+)·(×) + (+)·(×)
is equal to
Answer: (C)
Solution
Terms with a repeated vector vanish ( etc.), so the value is
[\ \ ] + [\ \ ] + [\ \ ] = 3[\
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