已知∫[x^2,0]xf(t)dt,求d^2y/dx^2..额..悬赏真心不够了,对不起啊
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已知∫[x^2,0]xf(t)dt,求d^2y/dx^2..额..悬赏真心不够了,对不起啊已知∫[x^2,0]xf(t)dt,求d^2y/dx^2..额..悬赏真心不够了,对不起啊已知∫[x^2,0]
已知∫[x^2,0]xf(t)dt,求d^2y/dx^2..额..悬赏真心不够了,对不起啊
已知∫[x^2,0]xf(t)dt,求d^2y/dx^2
..额..悬赏真心不够了,对不起啊
已知∫[x^2,0]xf(t)dt,求d^2y/dx^2..额..悬赏真心不够了,对不起啊
已知∫[x^2,0]xf(t)dt,求d^2y/dx^2..额..悬赏真心不够了,对不起啊
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