论文部分内容阅读
例1甲、乙两人分别从A、B两地同时出发,相向而行,在距A地8千米处相遇.相遇后,两人速度不变继续前进,分别到达B、A之后立即返回,又在距B地6千米处相遇.求A、B两地间的距离.解设A、B两地间的距离为x千米.从整体考虑,由于两人速度不变,则在相等的时间内有:(1)从出发到第一次相遇,甲、乙两人共走了全程,即A、B两地间的距离x千米,而甲则走了8千米.
Example 1 A, B two from A, B at the same time starting from the two, while the opposite, at a distance of 8 km from the A encounter, the two continued to move forward at the same speed, respectively, after the arrival of B, A return immediately , But also at a distance of 6 km from B to find the distance between A and B. Set A, B distance between the two for x km from the overall consideration, due to the same two people at Equivalent time: (1) from the departure to the first encounter, A and B left the whole journey a total of two, that is, the distance between A and B x km, and a walk away 8 km.