[生醫] [工數]清大84 生醫工程 (矩陣)
題目如下
For the following system of equations,
{ 5x - 3y + 4z = -23
{ -x + 2y - 8z = 29
{ 4y + 7z = -13
(a) Determine the rank of the coefficient matrix.
(b) Find the inverse of the ciefficient matrix.
(c) Find th solution.
這題我算出來的答案是
(a) rank=3
[ 46 37 16 ]
(b) inverse matrix = [ 7 35 36 ]
[ -4 20 7 ]
-11417 -1322 397
(c) solution : x= ──── y= ──── z= ────
193 193 193
不知道自己算的對不對
尤其是(c)的答案很詭異
請各位幫忙看看答案有沒有算錯
謝謝大家
感激不盡!!
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01/03 17:24, , 1F
01/03 17:24, 1F