Given that ∣12i+kj+3k∣=13|12\mathbf{i} + k\mathbf{j} + 3\mathbf{k}| = 13∣12i+kj+3k∣=13
Find the two possible values of kkk
42 exam-style questions on Edexcel A Level Maths 12.2 Vectors in 3D. Each one has a worked solution and a mark scheme showing where the marks go.