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If A=[{:(1,-2,0),(2,1,3),(0,-2,1):}],B=[...

If `A=[{:(1,-2,0),(2,1,3),(0,-2,1):}],B=[{:(7,2,-6),(-2,1,-3),(-4,2,5):}]` , find AB Also solve `x-2 y=10, 2x+y+3z=8, -2y+z=7`

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The correct Answer is:
`[{:(11,0,0),(0,11,0),(0,0,11):}];x=4, y=-3,z=1`
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