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Question
Solve the matrix equations:
`[[],[x-5-1],[]][[1,0,2],[0,2,1],[2,0,3]] [[x],[4],[1]]=0`
Sum
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Solution
`[[],[x-5-1],[]][[1 0 2],[0 2 1],[2 0 3]] [[x],[4],[1]]=0`
⇒[x−0−2 0−10−0 2x−5−3] `[[x],[4],[1]]=0`
⇒[x−2 −10 2x−8 ] `[[x],[4],[1]]=0`
⇒[x2−2x−40+2x−8]=0
⇒x2−48=0
⇒x2=48
`⇒ x= ± sqrt48`
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