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Find Is SkewSymmetric matrix [[0,2,3],[-2,0,6],[-3,-6,0]]

Solution:
Your problem `->` Is SkewSymmetric matrix [[0,2,3],[-2,0,6],[-3,-6,0]]


A square matrix `A=[a_(ij)]` is said to be a skew symmetric if `A = -A^T` i.e. `a_(ij) = -a_(ji)` for all i,j.

Note : In a skew symmetric matrix, all the diagonal elements are always zero.

`A` = 
`0``2``3`
`-2``0``6`
`-3``-6``0`


`A^T` = 
`0``2``3`
`-2``0``6`
`-3``-6``0`
T
 = 
`0``-2``-3`
`2``0``-6`
`3``6``0`



`(-1) × (A^T)` = `-1` × 
`0``-2``-3`
`2``0``-6`
`3``6``0`
 = 
`0``2``3`
`-2``0``6`
`-3``-6``0`



Here, `A` and `-A^T` are equal, so `A` is a skew symmetric matrix






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