Question

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想問這兩題如何解~謝謝

r Algebra (...*
Juny
>
N
Problem 2
35 points
B
Please find by the back substitution method if Bx = (6,0, 9, 10) and
2
0
-1 2
2
0
3
Problem 3
A =
0
P
2 0
1 2
1
04 -1 2
16
-2 4
iH
-1
-1 2
-1
30 points
Find basis vectors of C(AT) and N(A) if
3
2
3 1
5
-1 2
with the help of results obrained in Problem 1.