ap微积分ab真题及答案解析(2022最新英文版考题)

　　ap微积分是大学微积分入门课程，主要让学生通过参与图形等方式表示的的显示世界问题，探索变化、极限、函数分析等时使用定义、定理建立论点&证明结论。下面来看看2022年ab部分的考题和答案。

　　一、考试真题

　　1.From5 AM to10 AM. Therateatwhichvehiclesarriveatacertaintollplazaisgivenby A(1)= 450sin(0.62r), where t is the number of hours after 5 A.M.and A(1) is measured in vehicles per hour.

　　Traffic is flowing smoothly at 5 A.M.with no vehicles waiting in line.

　　(a) Write, but do not evaluate, an integral expression that gives the total number of vehicles that arrive at the toll plaza from 6AM(t=1to10AM(t=5).

　　(b)Find the average value of the rate in vehicles per hour. at which vehicles arrive at the toll plaza from 6 A.M.(t=1)to 10 A.M.(t=5).

　　cis the rate at which vehicles arrive at the toll plaza at 6 A.M.(t=1)increasing or decreasing? Give a reason for your answer.

　　(d) A line forms whenever A(t) ≥ 400.The number of vehicles in line at time t,for a ≤≤ 4. is given by N(1)=(A(x)-400)dx,where a is the time when a line first begins to form.To the nearest whole number, find the greatest number of vehicles in line at the toll plaza in the time interval a ≤≤4. Justify your answer

　　2. Let f and g be the functions defined by fx =lnx+ 3) and g(x) = (x²)²+ 2x3. The graphs of f and g shown in the figure above intersect at x=-2and x=Bwhere B>0.

　　(a)Find the area of the region enclosed by the graphs of f and g.

　　(b) For -2 ≤x ≤ B,let h(x) be the vertical distance between the graphs of f and g. Is h increasing or decreasing at x=-0.5?Give a reason for your answer.

　　(c)The region enclosed by the graphs off and g is the base of a solid.Cross sections of the solid taken perpendicular to the x-axis are squares.Find the volume of the solid.

　　(d) A vertical line in the xy-plane travels from left to right along the base of the solid described in part(c). The vertical line is moving at a constant rate of 7 units per second.Find the rate of change of the area of the cross section above the vertical line with respect to time when the vertical line is at position x=-0.5.

　　3.Letfbeadifferentiablefunctionwithf4)= 3. Ontheinterval0≤x≤ 7. the graph off,the derivative

　　of f.consists of a semicircle and two line segments as shown in the figure above.

　　(a)Find f(0) and f(5).

　　(b)Find the x-coordinates of all points of inflection of the graph off for 0

　　(c)Let g be the function defined by g(x)=f(x) - x. On what intervals, if any, is g decreasing for

　　O≤x≤7? Show the analysis that leads to your answer.

　　(d)For the function g defined in part(c),find the absolute minimum value on the interval 0 ≤x≤7.Justify Your answer

　　二、答案解析

　　三、ab微积分备考方法

　　1.复习所有核心的知识点和概念

　　2.做大量题目练习并反思总结

　　3.考前冲刺复习，参加模拟考试或做真题

　　4.调整好考试心态，积极应对

　　以上是ap微积分ab课程的相关内容，希望对大家有所帮助。学习上有任何问题，记得找我们考而思的专业老师一对一指导哟!