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求函数y=frac{sqrt{1 …

http://www.jyeoo.com/math2/ques/detail/840b5457-297a-46dd-98c8-4ac4bbd85d40
Category: Children s sports shoes  
【解答】解：线ly轴截距为10，且原点到直线的距离是8，设直线程为 x a + y 10 =1，即10xy-10a=，∴d= |10a| 1 0 2 + a 2 =8 ，得a=± 40 3，案为：3x4-4=0，3x-4y+40=0． ...

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