VectorHard
Question
If 
and 
are unit vectors such that 
= 1 and 
, then
and are unit vectors such that = 1 and , thenOptions
A.
are non-coplanar
are non-coplanarB.
are non-coplanar
are non-coplanarC.
are non-parallel
are non-parallelD.
are parallel and 
are parallel
are parallel and are parallelSolution
= 1 possible only when 
and 
Since
= 1/2 and 
, then 
≠ 1 .Create a free account to view solution
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