ＡＴibetan monk leaves the monastery at 7:00 am and takes his usual path to the top of mountain arriving at 7:00pm the follow morning he stars at 7:00 am at the top and takes the same path back,arriving at the monastery at 7:00pm.Use the Intermediate Value Theorem to show that there is a ponint on the path that the monk will cross at exactly the same time of day on both days.

看了半天原来是数学题

一名藏僧上午7点钟从僧院离开，沿他惯走的小路上山，于下午7点钟到达山顶。第二天上午7点钟他从山顶出发，沿路返回，于下午7点钟回到僧院。试用介值定理证明该僧将在两天内的同一时间经过路上的同一点。