求函数y=立方根((x^2-2x)^2)在【0,3】上的最值最大值y(3)=立方根(9)最小值y(0)、y(2)=0极值、最值不是求y'=0的左右是否异号,异号就取=0的那点代入y中吗?该题x=1,y'=0;x=2,y'不存在,x=0或3,y'不等
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![求函数y=立方根((x^2-2x)^2)在【0,3】上的最值最大值y(3)=立方根(9)最小值y(0)、y(2)=0极值、最值不是求y'=0的左右是否异号,异号就取=0的那点代入y中吗?该题x=1,y'=0;x=2,y'不存在,x=0或3,y'不等](/uploads/image/z/14757861-21-1.jpg?t=%E6%B1%82%E5%87%BD%E6%95%B0y%3D%E7%AB%8B%E6%96%B9%E6%A0%B9%28%EF%BC%88x%5E2-2x%EF%BC%89%5E2%29%E5%9C%A8%E3%80%900%2C3%E3%80%91%E4%B8%8A%E7%9A%84%E6%9C%80%E5%80%BC%E6%9C%80%E5%A4%A7%E5%80%BCy%283%29%3D%E7%AB%8B%E6%96%B9%E6%A0%B9%EF%BC%889%EF%BC%89%E6%9C%80%E5%B0%8F%E5%80%BCy%280%29%E3%80%81y%282%29%3D0%E6%9E%81%E5%80%BC%E3%80%81%E6%9C%80%E5%80%BC%E4%B8%8D%E6%98%AF%E6%B1%82y%27%3D0%E7%9A%84%E5%B7%A6%E5%8F%B3%E6%98%AF%E5%90%A6%E5%BC%82%E5%8F%B7%2C%E5%BC%82%E5%8F%B7%E5%B0%B1%E5%8F%96%3D0%E7%9A%84%E9%82%A3%E7%82%B9%E4%BB%A3%E5%85%A5y%E4%B8%AD%E5%90%97%3F%E8%AF%A5%E9%A2%98x%3D1%2Cy%27%3D0%EF%BC%9Bx%3D2%2Cy%27%E4%B8%8D%E5%AD%98%E5%9C%A8%2Cx%3D0%E6%88%963%2Cy%27%E4%B8%8D%E7%AD%89)
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