Mathematics
Senior High
Resolved
求講解
[ax+5y+12z=4
8
J. 已知a,b為實數,且方程組> x+ay+z=7恰有一組解,又此方程組經過一系列的高斯消去法運算後,原來的
3
(3x+8y+az=1
「1 2 6 7
增廣矩陣可化為065-5
00 b
數對(a,b)=
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