The orthogonal projection A' of the poin...

The orthogonal projection A' of the point A with position vector `(1, 2, 3)` on the plane `3x-y+4z=0` is

A

`(-1, 3, -1)`

B

`(-(1)/(2), (5)/(2), 1)`

C

`((1)/(2), -(5)/(2), -1)`

D

`(6, -7, -5)`

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The correct Answer is:

(b)

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