Edexcel FP1 AS 2023 June — Question 5

Exam BoardEdexcel
ModuleFP1 AS (Further Pure 1 AS)
Year2023
SessionJune
TopicVectors: Cross Product & Distances

  1. The points \(A , B\) and \(C\) are the vertices of a triangle.
Given that
  • \(\overrightarrow { A B } = \left( \begin{array} { l } p
    4
    6 \end{array} \right)\) and \(\overrightarrow { A C } = \left( \begin{array} { l } q
    4
    5 \end{array} \right)\) where \(p\) and \(q\) are constants
  • \(\overrightarrow { A B } \times \overrightarrow { A C }\) is parallel to \(2 \mathbf { i } + 3 \mathbf { j } + 4 \mathbf { k }\)
    1. determine the value of \(p\) and the value of \(q\)
    2. Hence, determine the exact area of triangle \(A B C\)