Question

: Cho

A =

2 1 0
2 3 −4
!
, B =


1 0 −3
−2 1 4
0 −2 7

 , C =


−1 −2
0 9
2 0

 .
Tính
a) −2A + 3C
T
.
b) AB.

Answer 1

n/a

Explanation:

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