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求函数y=frac{sqrt{1 …
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求函数y=frac{sqrt{1 …
Website URL:
http://www.jyeoo.com/math2/ques/detail/840b5457-297a-46dd-98c8-4ac4bbd85d40
Category:
Air Purifier
【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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