Mathematics & Statistics
大学
有人能幫幫我解這題嗎，謝謝各位
[12
24
4.A
_A = [₁²5].B =[²].c=
34
[13
(1)求ATB-5C。(20%)
a -4
b
[142]
= 38 7
15 69]
(2)若4A - 3B = |
(二
[],求a,b,c之值。(10%)
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