Объяснение:
S = 2t³-5t²+t
Смысл производной: x'(t) = v(t), v'(t) = x''(t) = a(t),
Тогда:
x'(t) = (2t³) - (5t²) +(t)' = 6t²-10t = u(t)
u(4) = 6*4²- 10*4 = 56
a(t) = u'(t) = (6t²)'-(10t)'=12t-10
a(4) = 48-10 = 38
ответ: 56 и 38
Объяснение:
S = 2t³-5t²+t
Смысл производной: x'(t) = v(t), v'(t) = x''(t) = a(t),
Тогда:
x'(t) = (2t³) - (5t²) +(t)' = 6t²-10t = u(t)
u(4) = 6*4²- 10*4 = 56
a(t) = u'(t) = (6t²)'-(10t)'=12t-10
a(4) = 48-10 = 38
ответ: 56 и 38