Given that ∣ki−8j+4k∣=12|k\mathbf{i} - 8\mathbf{j} + 4\mathbf{k}| = 12∣ki−8j+4k∣=12
Find the two possible values of kkk
168 exam-style questions on AQA A Level Maths 1.13 J: Vectors, covering 1.13.1 Vectors in two and three dimensions, 1.13.2 Magnitude and direction of a vector, 1.13.3 Vector arithmetic, 1.13.4 Position vectors, and 1.13.5 Vectors to solve problems. Each one has a worked solution and a mark scheme showing where the marks go.