One of the problems posed by the Marquis de I’Hospital in his calculus textbook Analyse des Infiniment Petits concerns a pulley that is attached to the ceiling of a room at a point C by a rope of length r . At another point B on the ceiling, at a distance d from C (where d > r ), a rope of length ℓ is attached and passed through the pulley at F and connected to a weight W . The weight is released and comes to rest at its equilibrium position D . (See the figure.) As I’Hospital argued, this happens when the distance | ED | is maximized. Show that when the system reaches equilibrium, the value of x is r 4 d ( r + r 2 + 8 d 2 )
One of the problems posed by the Marquis de I’Hospital in his calculus textbook Analyse des Infiniment Petits concerns a pulley that is attached to the ceiling of a room at a point C by a rope of length r . At another point B on the ceiling, at a distance d from C (where d > r ), a rope of length ℓ is attached and passed through the pulley at F and connected to a weight W . The weight is released and comes to rest at its equilibrium position D . (See the figure.) As I’Hospital argued, this happens when the distance | ED | is maximized. Show that when the system reaches equilibrium, the value of x is r 4 d ( r + r 2 + 8 d 2 )
Solution Summary: The author explains how Marquis de L'Hospital's model reaches equilibrium when the value of x is underset_r4d(r+sq
One of the problems posed by the Marquis de I’Hospital in his calculus textbook Analyse des Infiniment Petits concerns a pulley that is attached to the ceiling of a room at a point C by a rope of length r. At another point B on the ceiling, at a distance d from C (where d > r), a rope of length ℓ is attached and passed through the pulley at F and connected to a weight W. The weight is released and comes to rest at its equilibrium position D. (See the figure.) As I’Hospital argued, this happens when the distance | ED | is maximized. Show that when the system reaches equilibrium, the value of x is
Consider the function f(x) = x²-1.
(a) Find the instantaneous rate of change of f(x) at x=1 using the definition of the derivative.
Show all your steps clearly.
(b) Sketch the graph of f(x) around x = 1. Draw the secant line passing through the points on the
graph where x 1 and x->
1+h (for a small positive value of h, illustrate conceptually). Then,
draw the tangent line to the graph at x=1. Explain how the slope of the tangent line relates to the
value you found in part (a).
(c) In a few sentences, explain what the instantaneous rate of change of f(x) at x = 1 represents in
the context of the graph of f(x). How does the rate of change of this function vary at different
points?
1. The graph of ƒ is given. Use the graph to evaluate each of the following values. If a value does not exist,
state that fact.
и
(a) f'(-5)
(b) f'(-3)
(c) f'(0)
(d) f'(5)
2. Find an equation of the tangent line to the graph of y = g(x) at x = 5 if g(5) = −3 and g'(5)
=
4.
-
3. If an equation of the tangent line to the graph of y = f(x) at the point where x 2 is y = 4x — 5, find ƒ(2)
and f'(2).
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