If A=[[1,-2],[5,3]],B=[[1,-3],[4,-7]],th...

If `A=[[1,-2],[5,3]],B=[[1,-3],[4,-7]]`,then find the matrix `A-2B+6I`, where I is the unit matrix of order 2.

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The correct Answer is:

`[{:(5,4),(-3,23):}]`

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