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设函数f(x)连续,则积分区间(0->x),d/dx{∫tf(x^2-t^2)d...
设函数f(x)连续,则积分区间(0->x),d/dx{∫tf(x^2-t^2)dt}=()A.2xf(x^2)设函数f(x)连续,则积分区间(0->x),d/dx{∫tf...
设函数f(x)连续,则积分区间(0->x),d/dx{∫tf(x^2-t^2)dt} = ()A.2xf(x^2) 设函数f(x)连续,则积分区间(0->x),d/dx{∫tf(x^2-t^2)dt} = ()A.2xf(x^2) B.-2xf(x^2) C.xf(x^2) D.-xf(x^2)
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