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
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.