1. Show that the cross product is a continuous function. 3. The attempt at a solution I have tried to apply the definition of continuity: find a delta such that |x-y|< delta implies |f(x)-f(y)|< epsilon but I'm having trouble making sense of what |x-y| is. As I see it, x is a pairs of vectors in R^3 and so is y. Then what is |x-y|? and how do I get to the conclusion?