已知X1,X2,X3,…,X2008都为整数,其中-1≤Xi≤2(i=1,2,3,…,2008).且X1+X2+X3+…+X2008=208,X1^2+X2^2+X3^2+…+X2008^2=2008,求X1^3+X2^3+X3^3+…+X2008^3的最大值与最小值.(讲懂,不要复制的)
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![已知X1,X2,X3,…,X2008都为整数,其中-1≤Xi≤2(i=1,2,3,…,2008).且X1+X2+X3+…+X2008=208,X1^2+X2^2+X3^2+…+X2008^2=2008,求X1^3+X2^3+X3^3+…+X2008^3的最大值与最小值.(讲懂,不要复制的)](/uploads/image/z/3693267-27-7.jpg?t=%E5%B7%B2%E7%9F%A5X1%2CX2%2CX3%2C%E2%80%A6%2CX2008%E9%83%BD%E4%B8%BA%E6%95%B4%E6%95%B0%2C%E5%85%B6%E4%B8%AD-1%E2%89%A4Xi%E2%89%A42%EF%BC%88i%3D1%2C2%2C3%2C%E2%80%A6%2C2008%EF%BC%89.%E4%B8%94X1%2BX2%2BX3%2B%E2%80%A6%2BX2008%3D208%2CX1%5E2%2BX2%5E2%2BX3%5E2%2B%E2%80%A6%2BX2008%5E2%3D2008%2C%E6%B1%82X1%5E3%2BX2%5E3%2BX3%5E3%2B%E2%80%A6%2BX2008%5E3%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%8E%E6%9C%80%E5%B0%8F%E5%80%BC.%28%E8%AE%B2%E6%87%82%2C%E4%B8%8D%E8%A6%81%E5%A4%8D%E5%88%B6%E7%9A%84%29)
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