作者mqazz1 (无法显示)
看板Math
标题[线代] nonsingular观念
时间Sun Mar 20 23:45:26 2011
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?
请问要怎麽解释呢?
谢谢!
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1F：推 powerkshs :可逆会有唯一解 03/21 00:10
2F：推 jacky7987 :你可以证明c1*x1+c2*x2也会是解对於所以有c1,c2 03/21 00:34