1.

Consider a plane pi:vecr*vecn=d (where vecn is not a unti vector). There are two points A(veca) and B(vecb) lyingon the same sideof the plane. Q.Reflection of A(veca) in the plane pi has the position vector :

Answer»

`VECA+(2)/((VECN)^(2))(d-veca*vecn)vecn`
`veca-(1)/((vecn)^(2))(d-veca*vecn)vecn`
`veca+(2)/((vecn)^(2))(d+veca*vecn)vecn`
`veca+(2)/((vecn)^(2))vecn`

ANSWER :A


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