In triangle LMNLMNLMN, LM⃗=i−2j+5k\vec{LM} = \mathbf{i} - 2\mathbf{j} + 5\mathbf{k}LM=i−2j+5k, LN⃗=4i+3j−2k\vec{LN} = 4\mathbf{i} + 3\mathbf{j} - 2\mathbf{k}LN=4i+3j−2k
Find the vector MN⃗\vec{MN}MN
Find the length of the line LMLMLM
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.