1.

The position vector of the point of intersection of three planesvecr, vecn_(1) =q_(1), vecr, vecn_(2) =q_(2) , vecr, vecn_(3) =q_(3) where vecn_(1), vecn _(2) and vecn _(3) are non-coplanar vectors, is :

Answer»

`(1)/([VECN _(1) vecn_(2)vecn_(3)])[q_(3) (vecn _(1)xx vecn_(2)) + q_(1)(vecn _(2) xx vecn _(3)) +q_(2) (vecn_(3) xx ecn_(1))]`
`(1)/([vecn _(1) vecn_(2)vecn_(3)])[q_(1) (vecn _(1)xx vecn_(2)) + q_(2)(vecn _(2) xx vecn _(3)) +q_(2) (vecn_(3) xx ecn_(1))]`
`(1)/([vecn _(3) vecn_(1)vecn_(2)])[q_(1) (vecn _(1)xx vecn_(2)) + q_(2)(vecn _(2) xx vecn _(3)) +q_(2) (vecn_(3) xx ecn_(1))]`
NONE of these

ANSWER :A


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