szdytom 4537beaf6c
2A p1
Signed-off-by: szdytom <szdytom@qq.com>
2025-07-09 21:30:17 +08:00

19 lines
621 B
Typst
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#import "../styles.typ": exercise_sol, tab
#import "../math.typ": span
#exercise_sol(type: "answer")[
$FF^3$ 中的四个不同的向量,其张成空间为
$ {(x, y, z) in FF^3 : x + y + z = 0} $
][
$u = (1, 0, -1)$$v = (0, 1, -1)$。根据张成空间的定义,
$ span(u, v) = {(x, y, -x-y) in FF^3 : x,y in FF} $
#tab 这已经是题目所要求的张成空间了。为了补足四个不同的向量,我们可以取 $w_1 = 2u$$w_2 = 2v$
#tab 综上所述,题目要求的四个不同的向量可以是
$ (1, 0, -1)"" wide (0, 1, -1)"" wide (2, 0, -2)"" wide (0, 2, -2) $
]