A2 June 2024 Paper 2 Q1

1 It is given that

\[\begin{bmatrix} 2 \\ 1 \\ 3 \end{bmatrix} \bullet \begin{bmatrix} 5 \\ \lambda \\ -6 \end{bmatrix} = 0\]

where \(\lambda\) is a constant.

Find the value of \(\lambda\)

Circle your answer. [1 mark]

• \(-28\)
• \(-8\)
• \(8\)
• \(28\)