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Find AB, if A=[[0,-1],[ 0, 2]]and B=[[3,...

Find AB, if `A=[[0,-1],[ 0, 2]]`and `B=[[3, 5],[ 0, 0]]`.

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Given `A=[[0,-1],[ 0, 2]]`and `B=[[3, 5],[ 0, 0]]`

`AB=[[0,-1],[ 0, 2]].[[3, 5],[ 0, 0]]`

`=>[[0(3)+(-1)(0),0(5)+(-1)(0)],[0(3)+2(0),0(5)+2(0)]]`

`=>[[0+0,0+0],[0+0,0+0]]`

`=>[[0,0],[0,0]]`
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