方程組6x-y-z=20 x2+y2+z2=1979
的所有正整數解是x1=11 y1=3 z1=43
x2=11 y2=43 z2=3
x3=13 y3=21 z3=37
x4=13 y4=37 z4=21
x1=11 y1=3 z1=43
x2=11 y2=43 z2=3
x3=13 y3=21 z3=37
x4=13 y4=37 z4=21
.
6 x - y - z = 20 |
x 2 + y 2 + z 2 = 1979 |
x 1 = 11 |
y 1 = 3 |
z 1 = 43 |
x 2 = 11 |
y 2 = 43 |
z 2 = 3 |
x 3 = 13 |
y 3 = 21 |
z 3 = 37 |
x 4 = 13 |
y 4 = 37 |
z 4 = 21 |
x 1 = 11 |
y 1 = 3 |
z 1 = 43 |
x 2 = 11 |
y 2 = 43 |
z 2 = 3 |
x 3 = 13 |
y 3 = 21 |
z 3 = 37 |
x 4 = 13 |
y 4 = 37 |
z 4 = 21 |
【考點】高次方程.
【答案】
x 1 = 11 |
y 1 = 3 |
z 1 = 43 |
x 2 = 11 |
y 2 = 43 |
z 2 = 3 |
x 3 = 13 |
y 3 = 21 |
z 3 = 37 |
x 4 = 13 |
y 4 = 37 |
z 4 = 21 |
【解答】
【點評】
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發布:2025/5/28 1:0:2組卷:64引用:1難度:0.5
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