Exam 5: More Applications of Differentiation

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A lamp is shining on top of a vertical light post that is 540 centimetres tall. A girl is running away from the base of the light post at a constant rate so that her shadow is increasing at the rate of 15 cm/s and the tip of her shadow is moving away from the base at the rate of 90 cm/s. How tall is she?

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Evaluate the limit Evaluate the limit   x ln x. x ln x.

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Use information obtained from f and its first two derivatives to sketch the graph of the function f(x) = x3 - 2x2 - 4x + 3.

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Newton's Method with initial approximation x0 is used to approximate a real root of the equation x4 - 2 = 0. The value of Newton's Method iteration x1 is equal to

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Find the extreme values of f(x) = x - 2 sin x on [0, π\pi ].

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Find the solution of the equation Find the solution of the equation   + 5x = 0 to four decimal places using Newton's Method. + 5x = 0 to four decimal places using Newton's Method.

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The equation xy + The equation   xy +   +   = 6 defines y as a function of x near the point (1, 1). Find an approximate value for y at x = 1.1. + The equation   xy +   +   = 6 defines y as a function of x near the point (1, 1). Find an approximate value for y at x = 1.1. = 6 defines y as a function of x near the point (1, 1). Find an approximate value for y at x = 1.1.

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Given that Given that   < 2, find an estimate for the size of the error if the Maclaurin polynomial of degree n for   is used to approximate   =   . How large need n be to ensure that this error is less than 10<sup>-4</sup>? < 2, find an estimate for the size of the error if the Maclaurin polynomial of degree n for Given that   < 2, find an estimate for the size of the error if the Maclaurin polynomial of degree n for   is used to approximate   =   . How large need n be to ensure that this error is less than 10<sup>-4</sup>? is used to approximate Given that   < 2, find an estimate for the size of the error if the Maclaurin polynomial of degree n for   is used to approximate   =   . How large need n be to ensure that this error is less than 10<sup>-4</sup>? = Given that   < 2, find an estimate for the size of the error if the Maclaurin polynomial of degree n for   is used to approximate   =   . How large need n be to ensure that this error is less than 10<sup>-4</sup>? . How large need n be to ensure that this error is less than 10-4?

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What are the asymptotes of the graph of y = What are the asymptotes of the graph of y =   ? ?

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An open rectangular box with square base is to be made from 300 cm2 of material. What dimensions will result in a box with the largest possible volume?

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The equation y = sin(x + y) - The equation y = sin(x + y) -   defines y as a function of x near the point   . Find the linearization of that function at x = 0. defines y as a function of x near the point The equation y = sin(x + y) -   defines y as a function of x near the point   . Find the linearization of that function at x = 0. . Find the linearization of that function at x = 0.

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Use linear approximation to approximate Use linear approximation to approximate   . .

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Evaluate the limit Evaluate the limit   .     -    . Evaluate the limit   .     -    Evaluate the limit   .     -    - Evaluate the limit   .     -    Evaluate the limit   .     -

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By considering the locations of its critical points, determine how many real zeros the function By considering the locations of its critical points, determine how many real zeros the function   must have. Find them, correct to six decimal places. must have. Find them, correct to six decimal places.

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Find the Taylor polynomial of degree 4 for the natural logarithm function ln x about x = 2.

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Find a linear approximation suitable for estimating the number 2442/5.

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Find the largest possible volume of a right circular cylinder that is inscribed in a sphere of radius r.

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Evaluate the limit . Evaluate the limit .    Evaluate the limit .

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A boat is pulled toward a dock by a rope with one end attached to the bow of the boat and the other end passing through a ring attached to the dock 2 metres higher than the bow of the boat. If the rope is pulled in at the rate of 0.5 metres per second, how fast is the boat approaching the dock when 3 metres of rope are out? (round to the nearest hundredth metre)

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Let g be a polynomial function such that Let g be a polynomial function such that   (x) = (x + 2)(   - 10x -24). Find the x-coordinate of all inflection points of the graph of g. (x) = (x + 2)( Let g be a polynomial function such that   (x) = (x + 2)(   - 10x -24). Find the x-coordinate of all inflection points of the graph of g. - 10x -24). Find the x-coordinate of all inflection points of the graph of g.

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