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Matrix multiplication:
Enter two matrices that can be multiplied, with each element separated by a comma and each row ending with a semicolon.
Note that mathematical functions and variables are not supported.
Enter two matrices that can be multiplied, with each element separated by a comma and each row ending with a semicolon.
Note that mathematical functions and variables are not supported.
Current location：Linear algebra >Matrix multiplication >History of matrix multiplication >Answer
$$ \begin{aligned}&\\ \color{black}{Calculate }& \color{black}{\ \ \begin{pmatrix} &555\ \end{pmatrix}\times \begin{pmatrix} &11\ &1\ &52\ &67\ &117\ &118\ &105\ &110\ &97\ &98\ &99\ &111\ &103\ &3\ &2\ \end{pmatrix}}\\ \\Solution:&\\&\begin{pmatrix} &555\ \end{pmatrix}\times \begin{pmatrix} &11\ &1\ &52\ &67\ &117\ &118\ &105\ &110\ &97\ &98\ &99\ &111\ &103\ &3\ &2\ \end{pmatrix}\\\\=\ \ &\begin{pmatrix} &6105\ &555\ &28860\ &37185\ &64935\ &65490\ &58275\ &61050\ &53835\ &54390\ &54945\ &61605\ &57165\ &1665\ &1110\ \end{pmatrix}\end{aligned}$$
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The properties of matrix multiplication:
(i) Combining Law: （A b）C=A（b C）
(ii) Distribution Law: A ( B + C ) = A B + A C either or ( A + B ) C = A C + B C .
(iii) λ ( A B ) = ( λ A ) B = A ( λ B ) .
Among them, A, B, and C are the matrices that make the multiplication of the above matrices meaningful, λ It's a number.