貨運百科

標題:

Systems of linear equations

發問:

Using gaussian elimination to solve x,y,z 2x+4y-z=12 -3x+5y+2z=-8 x+3y+2z=2

最佳解答:

( 2 4 -1 | 12 )( -3 5 2 | -8 )( 1 3 2 | 2 ) ( 2 4 -1 | 12 ) ( 1 13 0 | 16 ) ..... 2r1 + r2 ( 4 -2 0 | 10 ) ..... r3 - r2 ( 2 4 -1 | 12 ) ( 1 13 0 | 16 ) ( 0 54 0 | 54 ) ..... 4r2 - r3 From r3, get y = 1Sub. into r2, get x = 3Sub. into r1, get z = -2 Therefore, (x, y, z) = (3, 1, -2)

• A bunch of white roses-@1@
• electric field
• (1+x%)3次=4 點樣可以計到x=幾多% 詳盡d 　ｑｑ～

 

此文章來自奇摩知識+如有不便請留言告知

其他解答:

這家不錯*****買幾次啦真的一樣 厏丱価唀