Mathematics, 20.09.2019 20:00 Lilbre4676
The n × n identity matrix is the matrix with diagonal entries are all 1’s and the rest are all 0’s. show that, for any n×n matrix a, we have ai=ia=a.
Answers: 3
Mathematics, 21.06.2019 14:30
Ablock of wood is a cube whose side is x in. long. you cut off a 1-inch thick piece from the entire right side. then you cut off a 3-inch thick piece from the entire top of the remaining shape. the volume of the remaining block is 2,002 in3. what are the dimensions of the original block of wood?
Answers: 2
The n × n identity matrix is the matrix with diagonal entries are all 1’s and the rest are all 0’s....
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