討論串[理工] [線代]-線性映射
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1.let B be the basis of R^n consisting of the vectors v,v2,v3...,vn , and. let I be some other basis of R^n , Is [v1]I,[v2]I,...,[vn]I a basis of R^n.
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1.請問 Lker(A)={0} <==> A is onto. 怎麼證明呢?. 書上寫Lker(A)中之向量映射不到. 但映射不到的向量 不一定都在Lker(A)中. 不是很懂這題的映射規律. ----------------------------------------------------
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1.let T be a linear operator space V of dinension 3 ,and let x be a vector. in V . If p denotes the smallest positive integer such that. 3 2. (T-2I) (
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1.. T:V->V. if T is onto ->rank(T)=dim(V). ->N(T)=0. ->It's one-to-one. 2.. (1)rank(AB)=rank(A). <=min{rank(A),rank(B)}. 只能知道rank(B)>rank(A). 並不能保證B是f
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