数学题求解看图啊

显示全部楼层 · 2012-2-2 09:19:52

(1)-4,8,4(2)(x+1/2)^2+y^2=65/4(3)设圆方程为(x-a)^2+(y-b)^2=r^2(5-a)^2+(2-b)^2=r^2(3-a)^2+(2-b)^2=r^22a-b-3=0a=4,b=2,r=1(x-4)^2+(y-2)^2=1(4)设圆方程为(x-a)^2+(y-b)^2=r^2a-3b=0a=r或-a=ra^2-7=(a-b)^2/2a=3，b=1，r=3或a=-3，b=-1，r=3(x-3)^2+(y-1)^2=9或(x+3)^2+(y+1)^2=9...

千问 · 2012-2-2 09:19:52

(1)-4,8,4(2)(x+1/2)^2+y^2=65/4(3)设圆方程为(x-a)^2+(y-b)^2=r^2(5-a)^2+(2-b)^2=r^2(3-a)^2+(2-b)^2=r^22a-b-3=0a=4,b=2,r=1(x-4)^2+(y-2)^2=1(4)设圆方程为(x-a)^2+(y-b)^2=r^2a-3b...

千问 · 2012-2-2 09:19:52

做哪一道题啊？请把图片放正，看不清楚...