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Let A+2B={:[(3,2,-3),(1,0,4),(3,1,2)]:}a...

Let `A+2B={:[(3,2,-3),(1,0,4),(3,1,2)]:}and-A-B={:[(1,0,3),(-1,4,1),(3,2,1)]:}`. Find A and B.

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Given, Let `A+2B={:[(3,2,-3),(1,0,4),(3,1,2)]:}and-A-B={:[(1,0,3),(-1,4,1),(3,2,1)]:}`. Find A and B.
Now, `(A+2B)+(-A-B)={:[(3,2,-3),(1,0,4),(3,1,2)]:}+{:[(1,0,3),(-1,4,1),(3,2,1)]:}`
`rArrB={:[(4,2,0),(0,4,5),(6,3,3)]:}`.
Now
`A=-{:[(1,0,3),(-1,4,1),(3,2,1)]:}-{:[(4,2,0),(0,4,5),(6,3,3)]:}`
`={:[(-5,-2,-3),(1,-8,-6),(-9,-5,-4)]:}`
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