Describe the subspace of R3 (is it a line or plane or R3) spanned by

(c) all vectors in R3 with whole number components

(d) all vectors with positive components

왜 (c)는 Plane in R3이고 (d)는 All in R3 인가여?

둘다 All in R3 아닌가여???

전에 올렸는데 답글 하나 없어서 ㅠㅠ