f(x)=∫(0,x∧2)xcost∧2dt求f(x)的导数

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f(x)=∫(0,x∧2)xcost∧2dt求f(x)的导数f(x)=∫(0,x∧2)xcost∧2dt求f(x)的导数f(x)=∫(0,x∧2)xcost∧2dt求f(x)的导数f(x)=∫(0->

f(x)=∫(0,x∧2)xcost∧2dt求f(x)的导数
f(x)=∫(0,x∧2)xcost∧2dt求f(x)的导数

f(x)=∫(0,x∧2)xcost∧2dt求f(x)的导数
f(x) = ∫(0->x) x * cos(t) dt d/dx = x * cos(x) * (x)‘ - 0 = xcos(x) * 2x = 2xcos(x)