If ⎡⎢ ⎢ ⎢⎣10002300456078910⎤⎥ ⎥ ⎥⎦, then A is
Matrix A=⎡⎢ ⎢ ⎢⎣20110−1−2300140002⎤⎥ ⎥ ⎥⎦ is a ___ matrix
Matrix A=⎛⎜⎝600060006⎞⎟⎠ is a ___ matrix
A=⎡⎢⎣1000−50009⎤⎥⎦ is a ________.