x大于0,y大于0.z大于0.且x+y+z=1.求证,x分之1+y分之4+z分之9大于等于36
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x大于0,y大于0.z大于0.且x+y+z=1.求证,x分之1+y分之4+z分之9大于等于36
![x大于0,y大于0.z大于0.且x+y+z=1.求证,x分之1+y分之4+z分之9大于等于36](/uploads/image/z/19567303-7-3.jpg?t=x%E5%A4%A7%E4%BA%8E0%2Cy%E5%A4%A7%E4%BA%8E0.z%E5%A4%A7%E4%BA%8E0.%E4%B8%94x%2By%2Bz%3D1.%E6%B1%82%E8%AF%81%2Cx%E5%88%86%E4%B9%8B1%2By%E5%88%86%E4%B9%8B4%2Bz%E5%88%86%E4%B9%8B9%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E36)
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