Suppose you know that the 3 by 4 matrix has the vector s = (2,3,1,0)
as the only special solution to Ax=0 (x和0為向量 4*1)
(a) what is the exact row reduced rechelon form of R of A ?
(b) what is the column space of A ?
(c) what is the left nullspac of A ?
想請教的是這一題的b c小題,
我的想法是A=E^(-1)*R 來找,可是只找得出R
有想到C(A) =/= C(R),可是好像沒甚麼幫助
而column space of A 和 left nullspace of A 又是兩個相垂直的空間
b作做不出來c也就卡住了...
請問該如何做呢
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