CAIE FP1 2017 November — Question 6

Exam BoardCAIE
ModuleFP1 (Further Pure Mathematics 1)
Year2017
SessionNovember
TopicVectors: Cross Product & Distances

6 The points \(A , B\) and \(C\) have position vectors \(2 \mathbf { i } - \mathbf { j } + \mathbf { k } , 3 \mathbf { i } + 4 \mathbf { j } - \mathbf { k }\) and \(- \mathbf { i } + 2 \mathbf { j } + 4 \mathbf { k }\) respectively.
  1. Find the area of the triangle \(A B C\).
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  2. Find the perpendicular distance of the point \(A\) from the line \(B C\).
  3. Find the cartesian equation of the plane through \(A , B\) and \(C\).