2018 AP Calculus BC微积分真题系列之简答题免费下载

历年AP Calculus BC微积分BC系列

真题与答案下载

翰林国际教育全网首发

力争超快速发布最全资料

助你在升学路上一帆风顺

为你的未来保驾护航

2018 AP Calculus BC Free-Response Questions Free Download

2018 AP 微积分 BC 简答题部分免费下载

此套Section II试卷共分两个部分组成

Part A计时30分钟，共2题

Part B计时1小时，共4题

每道大题含有不同数量的小题

Part A可使用绘图计算器

Part B不可使用任何计算器

完整版下载链接见文末

部分真题预览：

Section II，Part A，请使用Graphing Calculator： 1）People enter a line for an escalator at a rate modeled by the function r given by where r(t) is measured in people per second and t is measured in seconds. As people get on the escalator, they exit the line at a constant rate of 0.7 person per second. There are 20 people in line at time t=0 .

1. How many people enter the line for the escalator during the time interval 0≤t ≤300 ?
2. During the time interval 0≤t ≤300 , there are always people in line for the escalator. How many people are in line at time t=300  ?
3. For t >300, what is the first time t that there are no people in line for the escalator?
4. For 0≤t ≤300 , at what time t is the number of people in line a minimum? To the nearest whole number, find the number of people in line at this time. Justify your answer.

Section II，Part B，不可使用任何计算器： 4） The height of a tree at time t is given by a twice-differentiable function H, where H(t) is measured in meters and t is measured in years. Selected values of H(t) are given in the table above.

1. Use the data in the table to estimate H' (6 ). Using correct units, interpret the meaning of H ' (6 ) in the context of the problem.
2. Explain why there must be at least one time t, for 2 < t <10 , such that H ' (t)=2.
3. Use a trapezoidal sum with the four subintervals indicated by the data in the table to approximate the average height of the tree over the time interval 2 ≤t≤10 .
4. The height of the tree, in meters, can also be modeled by the function G, given by , where x is the diameter of the base of the tree, in meters. When the tree is 50 meters tall, the diameter of the base of the tree is increasing at a rate of 0.03 meter per year. According to this model, what is the rate of change of the height of the tree with respect to time, in meters per year, at the time when the tree is 50 meters tall?

完整版真题下载链接请注册或登录后查看

文件为PDF格式

推荐使用电脑下载

 

2018 AP Calculus BC FRQ微积分简答题完整版答案免费下载

请持续关注，稍后更新

 

如需打包下载，请联系小助手了解更多

翰林学员全站资料免费打包下载，专享高速下载通道。

咨询或AP报名请添加顾问微信