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Find (1)/(2)(A+A') and (1)/(2)(A-A'), w...

Find `(1)/(2)(A+A') and (1)/(2)(A-A')`, when `A=[(0, a, b),(-a,0,c),(-b,-c,0)]`

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The correct Answer is:
`[(0,0,0),(0,0,0),(0,0,0)],[(0,a,b),(-a,0,c),(-b,-c,0)]`
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