理學(xué)習(xí)題課ppt課件-資料下載頁
2025-01-19 22:48本頁面
【正文】 和列把依第 Dn naaaaaxaaaaaxaaaaaxaDnn????????121?????.000121xaaaxaaaaxaaaaxann??????????????.1121 DxaxxxD nnnn ?? ?? ?從而得列展開第右端的第二個行列式按列加到第倍分別列的將第右端的第一個行列式,1,2,1)1(, nnn??? ,0000000001121DxaaxaxaxD nnnn ?????????????由此遞推，得 .,2122121212211DxxxaxxxaxxxDDxaxxxDnnnnnnnnnnn????????????????１于是如此繼續(xù)下去，可得 DxxxxxaxxxaxxxaxxxDnnnnnnn23142122121????????????? １)( 21213142122121xxxaxaxxxxxaxxxaxxxaxxxnnnnnn??????????????? １).(323112121xxxxxxxxxaxxxnnnn?????????? ?時，還可改寫成當(dāng) 021 ?xxx n?) ] .111(1[2121 xxxaxxxDnnn ????? ?? 練習(xí)題 填空 ????? ijijn aDaaD 則若 , .1????1322133213321,0, .2xxxxxxxxxqpxxxxx列式則行的三個根是方程設(shè)an)1(?0?132213321321321xxxxxxxxxxxxxxx ??????))()(( 321 xxxxxx ???03 ???? qpxx??1000000002022000202200020001000???????????D行列式 .32 0 0 6 !?.22921702163332314 .4444342414AAAAD????????則設(shè)四階行列式0?44434241 )2(111 AAAA ????????2111702163332314?????.22921702163332314 .4444342414AAAAD????????則設(shè)四階行列式0?44434241 )2(111 AAAA ????????][314424432342224121 AaAaAaAa ????????])6(333[3144434241 AAAA ?????????yxyxxyxyyxyx???.5yxxyxyxyyx111)(2 ????xyxyxyxyyx??????001)(2))((2 22 yxyxyx ?????)(2 33 yx ???221111111111111111 .6 yxyyxx?????證明：yxyxxxx???????0000001111左1001010100111111122???????yyxxyx1001010100111111122???????yyxxyx22 yx?1000010000101111111122yyxyyxxyx??????
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