3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
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3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解3/(X-4)+4/(y-1)=3和9/
3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
3/(X-4)+4/(y-1)=3 (1)
9/(X-4)-2/(y-1)=2 (2)
(1)+(2)*2 得 21/(x-4)=7
x=7
y=3
x=19 y=17\7
设1/(X-4)=r, 1/(y-1)=t
那么3r+4t=3 9r-2t=2
r=1/3 t=1/2
带入原假设
x=7 y=3
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x=7,y=3