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" If "A=|[1,1,0," then "a(11)A(21)+a(12)...

" If "A=|[1,1,0," then "a_(11)A_(21)+a_(12)A_(22)+a_(21)]

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IF A=[(1,1,0),(2,1,5),(1,2,1)], then a_(11) A_(21) +a_(12)A_(22)+a_(13)A_(23) =

IF A=[(1,1,0),(2,1,5),(1,2,1)], then a_(11) A_(21) +a_(12)+a_(12)A_(22)+a_(13)A_(23) =

If A=[(1,1,0),(2,1,5),(1,2,1)] then a_(11)A_(21)+a_(12)A_(22)+a_(13)A_(23) is equal to

If A=[[a_(11), a_(12), a_(13)], [a_(21), a_(22), a_(23)], [a_(31), a_(32), a_(33)]] and A_(ij) denote the cofactor of element a_(ij) , then a_(11)A_(21)+a_(12)A_(22)+a_(13)A_(23)=

If A=[[1, 1, 0], [2, 1, 5],[1, 2, 1]] and a_(ij) denote the cofactor of element A_(ij) , then a_(11)A_(21)+a_(21)A_(22)+a_(13)A_(23)=

If A=[[a_(11), a_(12), a_(13)], [a_(21), a_(22), a_(23)], [a_(31), a_(32), a_(33)]] and a_(ij) denote the cofactor of element A_(ij) , then a_(11)A_(11)+a_(12)A_(12)+a_(13)A_(13)=

If A=[(3,2,4),(1,2,1),(3,2,6)] and A_(ij) are the cofactors of a_(ij) , then a_(11)A_(11)+a_(12)A_(12)+a_(13)A_(13) is equal to

If A=[(1,2,1),(3,2,3),(2,1,2)] , then a_(11) A_(11)+a_(21) A_(21)+a_(31) A_(31)=

If A=[(1,2,1),(3,2,3),(2,1,2)] , then a_(11) A_(11)+a_(21) A_(21)+a_(31) A_(31)=

If A=[(cos theta,sin theta,0),(-sin theta,cos theta,0),(0,0,1)] , where A_(11), A_(12), A_(13) are co-factores of a_(11), a_(12), a_(13) respectively , then the value of a_(11)A_(11)+a_(12)A_(12)+a_(13)=