How do you multiply $((1, 2, 12), (13, 2, 1))$ with $((4, 8), (4, 3), (5, 2))$ ?

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Answer 1 · 2016-11-17T16:31:20

The answer is $=((72,38),(65,112))$

The matrix multiplication is

$((a,b,c),(d,e,f)).((l,m),(n,p),(q,r))$

$=((al+bn+fq,am+bp+cr),(dl+en+fq,dm+ep+rf))$

$((1,2,12),(13,2,1)).((4,8),(4,3),(5,2))$

$=((4+8+60,8+6+24),(52+8+5,104+6+2))$

$=((72,38),(65,112))$

How do you multiply ((1, 2, 12), (13, 2, 1))((1, 2, 12), (13, 2, 1)) with ((4, 8), (4, 3), (5, 2))((4, 8), (4, 3), (5, 2))?