3级方阵A按列分块，且，若，则= 。/ananas/latex/p/442016/ananas/latex/p/724859/ananas/latex/p/442022/ananas/latex/p/442025
举一反三
- 若阶方阵可逆,则可逆,且./ananas/latex/p/183/ananas/latex/p/924573/ananas/latex/p/1167318/ananas/latex/p/1167329
- 证明:若函数在内满足关系式 且 则/ananas/latex/p/209239/ananas/latex/p/534180/ananas/latex/p/534181/ananas/latex/p/534182/ananas/latex/p/534183
- 已知()=0.4，则()=( )/ananas/latex/p/152/ananas/latex/p/278/ananas/latex/p/847/ananas/latex/p/281/ananas/latex/p/152/ananas/latex/p/4781/ananas/latex/p/7419/ananas/latex/p/6547
- 若 且满足，则/ananas/latex/p/1077893/ananas/latex/p/121860/ananas/latex/p/1077899
- 设为 矩阵，且, 而，则= 。/ananas/latex/p/278/ananas/latex/p/326119/ananas/latex/p/441550/ananas/latex/p/441551/ananas/latex/p/441552