... (4 .1. 6)Từ (4 .1. 5) (4 .1. 6) và (*), (**) ta có[ ][ ] [ ][ ]knmNnMmknmNnMmknmNnMmkknmNnMmknmNnMmkknmNnMmknmNnMmkknmNnMmknmNnMmfkffaafaaaaaaa ,11 110 ,00 ,11 11, 111 1 ,11 11, 111 1 ,11 11, 111 11, 111 1supsupsup )1( supsupsupsupsupsupsupsupsupsup )1( supsupsupsupsup )1( 1 )1( )1( 1 )1( supsup )1( 1 )1( 1supsup++++++++++++++ ... cóknmknmknmmknmmknmmafcab0000000000,,2 /1, 12 /1, 12 /1, +=++++ knmNnMmkknmNnMmmmmknmNnMmfacab ,11 11, 111 12 /1, 111 1supsupsupsupsup)(supsup++ (4 .1. 5)Tơng tự nh vậy đối với phơng trình (3.9) ta có2 /1, 111 12 /1, 111 11, 111 1supsupsup )1( supsup)(supsup++++knmkNnMmknmNnMmnnnknmNnMmfacab ... Chu Minh Dơng Toán Tin K4322 /11 ,2 /1, 2 /11 ,11 ,1, 11, 2 /1, 2 /11 ,1, 11, 2 /11 ,2 /1, 11, 1 ,11 )2) (1( )2)) (1( )(2)) (1( )(2yyvvyvvknmknmknmknmknmknmknmknmknmknmknmknmknmknmk+++++++=+++++++++++++++++++à(...