1.

The vector equation of a plane is a relation satisfied by position vectors of all the points on the plane. If P is a plane and hat(n) is a unit vector through origin which is perpendicular to the plane P then vector equation of the plane must be rcdothat(n)=d where d represents perpendicular distance of plane p from origin Q. If b be the foot of perpendicular from A to the plane rcdothat(n)=d, then b must be

Answer»

`a+(d-acdothat(N))HAT(n)`
`a-(d-ahat(n))hat(n)`
`a+acdothat(n)`
`a-acdothat(n)`

ANSWER :(a)


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