代数 示例

求长、宽或高
[123456789]
解题步骤 1
A matrix is a rectangular arrangement or array of elements. The dimensions of a matrix, m×n, identify how many rows and columns a matrix has. m represents the number of rows and n represents the number of columns. Assuming that the matrix name is A, the matrix dimensions are written as Am×n.
解题步骤 2
The number of rows is 3.
m=3
解题步骤 3
The number of columns is 3.
n=3
解题步骤 4
The given matrix has dimensions m×n=3×3.
Am×n=A3×3
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