与曲线C:x²+y²+2x+2y=0相内切,同时又与直线l:y=2-x相切的半径最小的圆的半径是
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![与曲线C:x²+y²+2x+2y=0相内切,同时又与直线l:y=2-x相切的半径最小的圆的半径是](/uploads/image/z/2799122-50-2.jpg?t=%E4%B8%8E%E6%9B%B2%E7%BA%BFC%3Ax%26%23178%3B%2By%26%23178%3B%2B2x%2B2y%3D0%E7%9B%B8%E5%86%85%E5%88%87%2C%E5%90%8C%E6%97%B6%E5%8F%88%E4%B8%8E%E7%9B%B4%E7%BA%BFl%3Ay%3D2-x%E7%9B%B8%E5%88%87%E7%9A%84%E5%8D%8A%E5%BE%84%E6%9C%80%E5%B0%8F%E7%9A%84%E5%9C%86%E7%9A%84%E5%8D%8A%E5%BE%84%E6%98%AF)
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与曲线C:x²+y²+2x+2y=0相内切,同时又与直线l:y=2-x相切的半径最小的圆的半径是
与曲线C:x²+y²+2x+2y=0相内切,同时又与直线l:y=2-x相切的半径最小的圆的半径是
与曲线C:x²+y²+2x+2y=0相内切,同时又与直线l:y=2-x相切的半径最小的圆的半径是
x²+y²+2x+2y=0
(x+1)²+(y+1)²=2
当该圆的直径与所求圆的直径重合时
半径最小为 3√2/2