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階與三階行列式ppt課件-在線瀏覽

2025-03-04 15:51本頁面
　　

【正文】 bxaxaxa,3332323222131211aabaabaabD ?若記 333231232221131211aaaaaaaaaD ?或 ??????????121bbb??????????????。,333323213123232221211313212111bxaxaxabxaxaxabxaxaxa333231232221131211aaaaaaaaaD ???????????????。,333323213123232221211313212111bxaxaxabxaxaxabxaxaxa333231232221131211aaaaaaaaaD ???????????????。,333323213123232221211313212111bxaxaxabxaxaxabxaxaxa.3323122221112113baabaabaD ??,3333123221131112abaabaabaD ? .3323122221112113baabaabaaD ?則三元線性方程組的解為 : ,11 DDx ? ,22 DDx ? .33 DDx ?333231232221131211aaaaaaaaaD ? ,3332323222131211aabaabaabD ?243122421D ?計算三階行列式例２ 解 按對角線法則，有 ?D 4)2()4()3(12)2(21 ????????????)3(2)4()2()2(2411 ?????????????24843264 ???????.14??.094321112?xx求解方程例 3
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