1. is Vertical Matrix ?
`[[1],[4],[7]]`Solution:A matrix, in which number of columns is less than the number of rows, is called a vertical matrix.
The number of columns(1) is less than the number of rows(3), So `A` is a vertical matrix
2. is Vertical Matrix ?
`[[1,2,3,4],[4,5,6,7],[7,8,9,0]]`Solution:A matrix, in which number of columns is less than the number of rows, is called a vertical matrix.
| `A` | = | | `1` | `2` | `3` | `4` | | | `4` | `5` | `6` | `7` | | | `7` | `8` | `9` | `0` | |
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The number of columns(4) is not less than the number of rows(3), So `A` is not a vertical matrix
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