已知圆(x+3)^2+(y-1)^2=4和圆(x+a)^2+(y-5)^2=9相离,求a的取值范围
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![已知圆(x+3)^2+(y-1)^2=4和圆(x+a)^2+(y-5)^2=9相离,求a的取值范围](/uploads/image/z/12636790-70-0.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86%28x%2B3%29%5E2%2B%28y-1%29%5E2%3D4%E5%92%8C%E5%9C%86%28x%2Ba%29%5E2%2B%28y-5%29%5E2%3D9%E7%9B%B8%E7%A6%BB%2C%E6%B1%82a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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已知圆(x+3)^2+(y-1)^2=4和圆(x+a)^2+(y-5)^2=9相离,求a的取值范围
已知圆(x+3)^2+(y-1)^2=4和圆(x+a)^2+(y-5)^2=9相离,求a的取值范围
已知圆(x+3)^2+(y-1)^2=4和圆(x+a)^2+(y-5)^2=9相离,求a的取值范围
(-a+3)^2+4^2>5^2
-a+3>3,或者-a+3
不会