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l t A E R ^ mxn ha full rang och l t dess QR - faktorisering vara A = Q ( R 0 )

lt A E R^mxn ha full rang och lt dess QR- faktorisering vara A=Q(R 0)^T. lt vidare choleskyfaktorisering av A^TA vara A^TA= LL^T. visa att R^TR=LL^T. kan man dra slutsatsen att R=L^T?

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