Given the matrices $A=[(5,7),(-1,6), (3,-9)], B=[(8,3), (5,1), (4,4)], C=[(0,4),(-2,5), (7,-1)], D[(6,2), (9,0), (-3,0)]$ , how do you find D-B?

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Answer 1 · 2017-02-06T19:20:18

$D - B= [(-2,-1), (4,-1), (-7,-4)]$

$D - B = [(6,2), (9,0), (-3,0)] - [(8,3), (5,1), (4,4)]$

$= [(6-8,2-3), (9-5,0-1), (-3-4,0-4)]$

$= [(-2,-1), (4,-1), (-7,-4)]$

Given the matrices A=[(5,7),(-1,6), (3,-9)], B=[(8,3), (5,1), (4,4)], C=[(0,4),(-2,5), (7,-1)], D[(6,2), (9,0), (-3,0)]A=[(5,7),(-1,6), (3,-9)], B=[(8,3), (5,1), (4,4)], C=[(0,4),(-2,5), (7,-1)], D[(6,2), (9,0), (-3,0)], how do you find D-B?