1Q of circle F.5
2011-08-24 4:11 am
Find the equation of the circle with(-2,2) as centre & passing through the point of intersection of the lines x+2y-1=0 and 3x-4y-13=0.
回答 (1)
2011-08-24 4:33 am
✔ 最佳答案
Find the equation of the circle with(－2，2) as centre & passing through the point of intersection of thelines x+2y－1=0 and 3x－4y－13=0Sol2(x+2y－1)+(3x－4y－13)=05x=15x=3y=－1(x+2)^2+(y－2)^2=(－2－3)^2+(2+1)^2(x+2)^2+(y－2)^2=34
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