Use cross product for normals - multi-step simplification
Vectors \(\mathbf u=(15,4,-1)\) and \(\mathbf v=(4,-3,3)\) lie in a plane. Enter the first component of \(\mathbf u\times\mathbf v\).
Worked practice: result and interpretation
Calculate the requested result first, then choose the interpretation that follows from it.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.