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# AP Calculus 1984 FRQs

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Take a look at 84AB1 from Clementine/Betty Sue Song!

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### AP Calculus 1984 FRQs

1. 1. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (AB1) A particle moves along the X-axis so that, at any time t ≥≥≥≥ 0, the acceleration is given by a(t) = 6t + 6. At time t = 0, the velocity of the particle is -9, and its position is -27. (a) Find v(t), the velocity of the particle at any time t ≥ 0. (b) For what values of t ≥ 0 is the particle moving to the right? (c) Find x(t), the position of the particle at ant time t ≥ 0.
2. 2. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (AB2) Let f be the function defined by f(x) = x + sin x cos x for -ππππ 2 < x < ππππ 2 . (a) State whether f is an even function or an odd function. Justify your answer. (b) Find f ’(x). (c) Write an equation of the line tangent to the graph of f at the point where x = 0.
3. 3. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (AB3-BC1) Let R be the region enclosed by the X-axis, the Y-axis, the line x = 2, and the curve y = 2ex + 3x. (a) Find the area of R by setting up and evaluating a definite integral. Your work must include an antiderivative. (b) Find the volume of the solid generated by revolving R about the Y-axis by setting up and evaluating a definite integral. Your work must include an antiderivative.
4. 4. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (AB4-BC3) A function is continuous on the closed interval [-3, 3] such that f(-3) = 4 and f(3) = 1. The functions f ’ and f ’’ have the properties given in the table below. x -3 < x < 1 x = -1 -1 < x < 1 x = 1 1 < x < 3 f ’(x) Positive Fails to exist Negative 0 Negative f ’’(x) Positive Fails to exist Positive 0 Negative (a) What are the x-coordinates of all absolute maximum and absolute minimum points of f on the interval [-3, 3]? Justify your answer. (b) What are the x-coordinates of all points of inflection of f on the interval [-3, 3]? Justify your answer. (c) On the axes provided, sketch a graph that satisfies the given properties of f.
5. 5. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (AB5) The volume V of a cone (V = 1 3 ππππr2h) is increasing at the rate of 28ππππ cubic units per second. At the instant when the radius r of the cone is 3 units, its volume is 12ππππ cubic units and the radius is increasing at 1 2 unit per second. (a) At the instant when the radius of the cone is 3 units, what is the rate of change of the area of its base? (b) At the instant when the radius of the cone is 3 units, what is the rate of change of its height? (c) At the instant when the radius of the cone is 3 units, what is the instantaneous rate of change of the area of its base with respect to its height?
6. 6. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (BC2) The path of a particle is given for time t > 0 by the parametric equations x = t + 2 t and y = 3t2. (a) Find the coordinates of each point on the path where the velocity of the particle in the x direction is zero. (b) Find dy dx when t = 1. (c) Find d2y dx2 when y = 12.
7. 7. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (BC4) Let f be the function defined by f(x) = ∑ n=1 ∞∞∞∞ xnnn 3nn! for all values of x for which the series converges. (a) Find the radius of convergence of this series. (b) Use the first three terms of this series to find an approximation of f(-1). (c) Estimate the amount of error involved in the approximation in part (b). Justify your answer
8. 8. Calculus WorkBook 84 Name:_______________ Format © 1997 – 1999 MNA Consulting calcpage@aol.com (BC5) Consider the curves r = 3 cos θθθθ and r = 1 + cos θθθθ. (a) Sketch the curves on the axes provided. (b) Find the area of the region inside the curve r = 3 cos θ and outside the curve r = 1 + cos θ by setting up and evaluating a definite integral. Your work must include an antiderivative.