✏️ Разбор задачи с экзамена ШАД
Условие: Непрерывная функция f(x) такова, что f(0)=f(2). Докажите, что для какого-то x ∈ [0,2] имеет место равенство f(x) = f(x-1).
Решение: Рассмотрим функцию
φ(1) = f(1) - f(0)
φ(2) = f(2) - f(1)
В силу равенства $f(0)=f(2)$ из условия, получим φ(1)=-φ(2). Функция φ(x) непрерывна на отрезке [1, 2], тогда по теореме Больцано-Коши о промежуточном значении найдется
Ответ:
Proglib Academy #буст
BY Proglib.academy | IT-курсы
The cloud-based messaging platform is also adding Anonymous Group Admins feature. As per Telegram, this feature is being introduced for safer protests. As per the Telegram blog post, users can “Toggle Remain Anonymous in Admin rights to enable Batman mode. The anonymized admin will be hidden in the list of group members, and their messages in the chat will be signed with the group name, similar to channel posts.”
Among the actives, Ascendas REIT sank 0.64 percent, while CapitaLand Integrated Commercial Trust plummeted 1.42 percent, City Developments plunged 1.12 percent, Dairy Farm International tumbled 0.86 percent, DBS Group skidded 0.68 percent, Genting Singapore retreated 0.67 percent, Hongkong Land climbed 1.30 percent, Mapletree Commercial Trust lost 0.47 percent, Mapletree Logistics Trust tanked 0.95 percent, Oversea-Chinese Banking Corporation dropped 0.61 percent, SATS rose 0.24 percent, SembCorp Industries shed 0.54 percent, Singapore Airlines surrendered 0.79 percent, Singapore Exchange slid 0.30 percent, Singapore Press Holdings declined 1.03 percent, Singapore Technologies Engineering dipped 0.26 percent, SingTel advanced 0.81 percent, United Overseas Bank fell 0.39 percent, Wilmar International eased 0.24 percent, Yangzijiang Shipbuilding jumped 1.42 percent and Keppel Corp, Thai Beverage, CapitaLand and Comfort DelGro were unchanged.
Proglib academy | IT курсы from us