推 powerkshs :可逆會有唯一解 03/21 00:10
推 jacky7987 :你可以證明c1*x1+c2*x2也會是解對於所以有c1,c2 03/21 00:34
let Ax=b be a system of n linear equations in n unknowns,
and suppose that x1 and x2 are both solutions and x1 不等於 x2
(a) how many solutions will the sytem have?
(b) is the matrix A nonsingular?
請問要怎麼解釋呢?
謝謝!
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