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If [2 1 3] [{:(-1,0,-1),(-1,1,0),(0,1,1)...

If [2 1 3] `[{:(-1,0,-1),(-1,1,0),(0,1,1):}][{:(1),(0),(-1):}]`=A, then find the value of A.

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We have `[2 1 3] [ {:(-1,0,-1),(-1, 1,0),(0,1,1):}][{:(1),(0),(-1):}]=A`
`therefore [2 1 3] [{:(-1,0,-1),(-1,1,0),(0,1,1):}]=[-2-1+0 0+1+3-2+0+3]`
Now, `[-341] [{:(1),(0),(-1):}]=A`
`A=[ -341 ] [{:(1),(0),(-1):}]`
`=[-3+0-1]=[-4]`
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