Family of Planes Passing through the Intersection of Two Planes
The length of...
Question
The length of the perpendicular from the origin to the plane passing through three non collinear points →a,→b,→c is
A
[→a→b→c]∣∣→a×→b+→c×→a+→b×→c∣∣
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B
2[→a→b→c]∣∣→a×→b+→c×→a+→b×→c∣∣
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C
[abc]
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D
none of these
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Solution
The correct option is A[→a→b→c]∣∣→a×→b+→c×→a+→b×→c∣∣ The length of the perpendicular from the origin to the plane passing through three non collinear points →a,→b,→c are