The equation of the plane passing through the points having position vectors and is ...
(A)
(B)Correct
(C)
(D)
Answer: (B)
Solution
Let , , . Then and . A normal to the plane is $Missing argument for \bar\bar n=(Missing argument for \bar\bar c-Missing argument for \bar\bar a)×(Missing argument for \bar\bar c-Missing argument for \bar\bar b)=Missing argument for \bar\bar c×Missing argument for \bar\bar c-Missing argument for \bar\bar c×Missing argument for \bar\bar b-Missing argument for \bar\bar a×Missing argument for \bar\bar c+Missing argument for \bar\bar a×Missing argument for \bar\bar b=Missing argument for \bar\bar a×Missing argument for \bar\bar b+Missing argument for \bar\bar
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