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m x n m n . = [mij] * nij
A=
1.
a) A= B=
A+B= = =
) A= B=
A+B= + =
= =
2. A= B= D =? D = A-2B
D= -2* = - =
=
:
A*B= * =
=
1.
A = * =
2.A=
* =
=
4A = =
== =0
. :1. 2. 3.
1.
A = B =
:
= =
=
1.
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