The length of the perpendicular from the...

The length of the perpendicular from the origin to the plane passing though three non-collinear points `a,b,c` is

A

`([a b c])/(|a xx b+c xx a+b xx c|)`

B

`(2[a b c])/(|a xx b+ b xx c +c xx a|)`

C

[abc]

D

None of these

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The correct Answer is:

A

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