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Pls help me friends.....
If x=ai+bj , y=bj+ck , z=ai +ck, for which of the following triads (a,b,c) is x perpendicular to(z-y)?
1) (4 ,1 ,1)
2) (2 ,2 ,2)
3) (1 ,-1 ,1)
4) (-1, -2, 0
5) (1 ,2 ,0)
Rather than matrix it is a problem on vectors.
z-y=ai-bj
For x to be perpendicular to z-y dot product must be =0
here dot product=
{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}
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