[理工] [線代]-線代觀念題
這幾天補強我的線代觀念,作考古題時還是不太確定
手邊沒有解答想請問一下高手幾題
1.If V is a nonzero finite-dimensional vector spaces, and if every set of p
elements in V.
我覺得True對嗎?
2.If Aand B are square and invertible, then AB is invertible, and
(AB)^-1 = A^-1 * B^-1 fails to span V ,then dim V > p.
請問這題後面的p是代表甚麼?
True對嗎?
^ (抱歉符號不太會用)
3.A least-square solution of Ax=b is a vector x such that
^
||b-Ax|| <= ||b-Ax|| for all x in R^n.
False? 後面的不等式應該改 > 對不對
4.Row operations on a matrix A can change the linear depedence relations
among the rows of A.
True?列運算可以改變線性相依的列對不對
考到現在發現我線代超弱完了= =
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