The simple response in linear algebra
So, considering the studies in linear algebra, uma questão que envolvia o xyz plane and the two informations. The i and the i + j e perguntava where is the plane. The i as (1, 0, 0) and i + j as (1, 1, 0). Great.
The learning was that the where seria sobre qual o plano, e seria descrição. It is because the geometry is about the space, so the where makes sense.
The response was discussed with Claude. And it was just that, the xy plane considering z = 0. Simple like that.
Really great learning.