Предмет: Алгебра, автор: SaloKeka

Найти мгновенную скорость точки, по закону S(t)=7t в квадрате+t, в точке времени t 0=7 c

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Автор ответа: NNNLLL54

$S(t)=7t^2+t; ; ,; ; t_0=7\\V(t)=S'(t)=14t+1\\V(t_0)=V(7)=14cdot 7+1=99$

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