Предмет: Математика, автор: ViktorBun769

для функции y=f(x)=√x найдите первообразную график которой проходит через точку м(81;200)

Ответы

Автор ответа: alexokmail
1

y = f(x) =  \sqrt{x}  \\   \sqrt{x}  =  {x}^{ \frac{1}{2} }  \\ F(x) =  \frac{ {x}^{ \frac{1}{2} + 1} }{ \frac{1}{2} + 1 }  + c =  \frac{ {x}^{ \frac{3}{2} } }{ \frac{3}{2} }  + c =  \frac{2x \sqrt{x} }{3}  + c \\ m(81;200) \in F(x) \implies  \\  \implies  \:  \: 200 =  \frac{2 \times 81 \times  \sqrt{81} }{3}  + c \\ 200 = 486 + c \\ c =  200-486  =  - 286 \\ F(x) =  \frac{2x \sqrt{x} }{3}  - 286


ViktorBun769: Спасибо, откуда решение?
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