关于圆的题目:已知(x-1)²+(y+2)²=4,求(y+4)/(x+5)的取值范围
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![关于圆的题目:已知(x-1)²+(y+2)²=4,求(y+4)/(x+5)的取值范围](/uploads/image/z/6934126-22-6.jpg?t=%E5%85%B3%E4%BA%8E%E5%9C%86%E7%9A%84%E9%A2%98%E7%9B%AE%EF%BC%9A%E5%B7%B2%E7%9F%A5%EF%BC%88x-1%29%26%23178%3B%2B%28y%2B2%29%26%23178%3B%3D4%2C%E6%B1%82%EF%BC%88y%2B4%29%2F%28x%2B5%EF%BC%89%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
关于圆的题目:已知(x-1)²+(y+2)²=4,求(y+4)/(x+5)的取值范围
关于圆的题目:已知(x-1)²+(y+2)²=4,求(y+4)/(x+5)的取值范围
关于圆的题目:已知(x-1)²+(y+2)²=4,求(y+4)/(x+5)的取值范围
题目可以转化为:
(x,y)是以(1,-2)为圆心,2为半径的圆上一点,求(x,y)和点(-5,-4)连成的直线的斜率的取值范围.
答案是[0,3/4]
(-4/3,0)