Ответ: F(x)=9*sin(x/3)-1/3*cos(3*x)+C.
Объяснение:
F(x)=3*∫cos(x/3)*dx+∫sin(3*x)*dx=9*∫cos(x/3)*d(x/3)+1/3*∫sin(3*x)*d(3*x)=9*sin(x/3)-1/3*cos(3*x)+C.
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Ответ: F(x)=9*sin(x/3)-1/3*cos(3*x)+C.
Объяснение:
F(x)=3*∫cos(x/3)*dx+∫sin(3*x)*dx=9*∫cos(x/3)*d(x/3)+1/3*∫sin(3*x)*d(3*x)=9*sin(x/3)-1/3*cos(3*x)+C.