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Grade 12Vectors

Let ABCDEF be a regular hexagon. If AD = xBC and CF= yAB , then xy = ?

Profile image of Mihir
8 Years agoGrade 12
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1 Answer

Profile image of Arun
8 Years ago
 
From the point of vector geometry
If you draw hexagon ABCDEF
you see that
Vect(AD) = 2* vect (BC) and vect(FC) = 2* vect(AB)
Given that AD = x BC
Hence x = 2
Hence FC = -2 AB
hence y = -2
Hence
xy= -4

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