Preview question: determinanti&matrice

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Question summary: Se dau matricele A= [[1,2,1],[-5,x,-2],[5,-4,4]] si B =[[-3,5,-3],[1,4,5],[-4,-5,x]]. {Produsul dintre matricele A=[[1,2,1],[-5,x,-2],[5,-4,4]] si B=[[-3,5,-3],[1,4,5],[-4,-5,x]] este; Det(A)=; Valoarea lui x pentru care det(A) = det(B) este} -> {[[-5,8,x+7],[x+23,4·x-15,3·x+15],[-35,-11,4·x-35]]; -x+32; -88/9; 10·x-25; -17·x-208; -15; [[x+11,-18,-15],[3·x-5,-5·x+28,-5·x+16],[4·x-15,-16,-2]]}

Right answer summary: Produsul dintre matricele A=[[1,2,1],[-5,x,-2],[5,-4,4]] si B=[[-3,5,-3],[1,4,5],[-4,-5,x]] este -> [[-5,8,x+7],[x+23,4·x-15,3·x+15],[-35,-11,4·x-35]]; Det(A)= -> -x+32; Valoarea lui x pentru care det(A) = det(B) este -> -15

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Produsul dintre matricele A= $open parentheses table row 1 2 1 row cell negative 5 end cell x cell negative 2 end cell row 5 cell negative 4 end cell 4 end table close parentheses$ si B= $open parentheses table row cell negative 3 end cell 5 cell negative 3 end cell row 1 4 5 row cell negative 4 end cell cell negative 5 end cell x end table close parentheses$ este	Answer 1
Det(A)=	Answer 2
Valoarea lui x pentru care det(A) = det(B) este	Answer 3

Preview question: determinanti&matrice

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