x^2+y^2−8x−10y+16=0 x^2+y^2−2y=0 ,
问题描述:
x^2+y^2−8x−10y+16=0 x^2+y^2−2y=0 ,
答
x²+y²-2y=0x²+y²=2y,代入x²+y²-8x-10y+16=02y-8x-10y+16=0整理,得x+y-2=0y=2-x,代入x²+y²-2y=0x²+(2-x)²-2(2-x)=0整理,得x²-x=0x(x-1)=0x=0或x=1x=0时,y=2-...