Y1与根号X成正比例,Y2与X平方成反比例,Y=Y1+Y2.当X=4时,Y=2.当X=9时,Y=6.求这个函数关系试.
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![Y1与根号X成正比例,Y2与X平方成反比例,Y=Y1+Y2.当X=4时,Y=2.当X=9时,Y=6.求这个函数关系试.](/uploads/image/z/7649793-9-3.jpg?t=Y1%E4%B8%8E%E6%A0%B9%E5%8F%B7X%E6%88%90%E6%AD%A3%E6%AF%94%E4%BE%8B%2CY2%E4%B8%8EX%E5%B9%B3%E6%96%B9%E6%88%90%E5%8F%8D%E6%AF%94%E4%BE%8B%2CY%3DY1%2BY2.%E5%BD%93X%3D4%E6%97%B6%2CY%3D2.%E5%BD%93X%3D9%E6%97%B6%2CY%3D6.%E6%B1%82%E8%BF%99%E4%B8%AA%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB%E8%AF%95.)
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