Calculus and Its Applications (11th Edition)
11th Edition
ISBN: 9780321979391
Author: Marvin L. Bittinger, David J. Ellenbogen, Scott J. Surgent
Publisher: PEARSON
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Chapter CR, Problem 20E
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3.
Consider the sequences of functions f₁: [-π, π] → R,
sin(n²x)
An(2)
n
f pointwise as
(i) Find a function ƒ : [-T,π] → R such that fn
n∞. Further, show that fn →f uniformly on [-π,π] as n → ∞.
[20 Marks]
(ii) Does the sequence of derivatives f(x) has a pointwise limit on [-7, 7]?
Justify your answer.
[10 Marks]
1. (i) Give the definition of a metric on a set X.
[5 Marks]
(ii) Let X = {a, b, c} and let a function d : XxX → [0, ∞) be defined
as d(a, a) = d(b,b) = d(c, c) 0, d(a, c) = d(c, a) 1, d(a, b) = d(b, a) = 4,
d(b, c) = d(c,b) = 2. Decide whether d is a metric on X. Justify your answer.
=
(iii) Consider a metric space (R, d.), where
=
[10 Marks]
0
if x = y,
d* (x, y)
5
if xy.
In the metric space (R, d*), describe:
(a) open ball B2(0) of radius 2 centred at 0;
(b) closed ball B5(0) of radius 5 centred at 0;
(c) sphere S10 (0) of radius 10 centred at 0.
[5 Marks]
[5 Marks]
[5 Marks]
(c) sphere S10 (0) of radius 10 centred at 0.
[5 Marks]
2. Let C([a, b]) be the metric space of continuous functions on the interval
[a, b] with the metric
doo (f,g)
=
max f(x)g(x)|.
xЄ[a,b]
= 1x. Find:
Let f(x) = 1 - x² and g(x):
(i) do(f, g) in C'([0, 1]);
(ii) do(f,g) in C([−1, 1]).
[20 Marks]
[20 Marks]
Chapter CR Solutions
Calculus and Its Applications (11th Edition)
Ch. CR - Write an equation of the line with slope 4 and...Ch. CR - Prob. 2ECh. CR - For f(x)=x25, find f(x+h). x2+2xh+h25Ch. CR - 4. a. Graph:
b. Find.
c. Find.
d. Is f...Ch. CR - Prob. 5ECh. CR - Find each limit, if it exists. If a limit does not...Ch. CR - Find each limit, if it exists. If a limit does not...Ch. CR - Find each limit, if it exists. If a limit does not...Ch. CR - Find each limit, if it exists. If a limit does not...Ch. CR - Find each limit, if it exists. If a limit does not...
Ch. CR - Find each limit, if it exists. If a limit does not...Ch. CR - For Exercises 12-14, refer to the following graph...Ch. CR - For Exercises 12-14, refer to the following graph...Ch. CR - For Exercises 12-14, refer to the following graph...Ch. CR - Differentiate. y=9x+3Ch. CR - Differentiate. y=x27x+3Ch. CR - Differentiate. y=x1/4Ch. CR - Differentiate. f(x)=x6Ch. CR - Prob. 19ECh. CR - Differentiate.
22.
Ch. CR - Prob. 21ECh. CR - Differentiate. y=elnxCh. CR - Prob. 23ECh. CR - Differentiate.
24.
Ch. CR - Differentiate.
25.
Ch. CR - 26. For find.
Ch. CR - Business: average cost. Doubletake Clothing finds...Ch. CR -
28. Differentiate implicitly to find if .
Ch. CR - Find an equation of the tangent line to the graph...Ch. CR - 30. Find the x-value(s) at which the tangent line...Ch. CR - Sketch the graph of each function. List the label...Ch. CR - Prob. 32ECh. CR - Sketch the graph of each function. List the label...Ch. CR - Prob. 34ECh. CR - Find the absolute maximum and minimum values, if...Ch. CR - Prob. 36ECh. CR - Prob. 37ECh. CR - Prob. 38ECh. CR - 39. Business: minimizing inventory costs. An...Ch. CR - Prob. 40ECh. CR - Business: exponential growth. Friedas Frozen...Ch. CR - Prob. 42ECh. CR - 43. Business: approximating cost average. A square...Ch. CR - Prob. 44ECh. CR - Prob. 46ECh. CR - Prob. 47ECh. CR - Evaluate.
48. (Use Table 1 on pp. 431-432)
Ch. CR - Prob. 49ECh. CR - Evaluate. (x+3)lnxdxCh. CR - Prob. 51ECh. CR - Prob. 52ECh. CR - 53. Find the area under the graph of over the...Ch. CR - Business: present value. Find the present value of...Ch. CR - Prob. 55ECh. CR - Evaluate.
56. Business: contract buyout. An...Ch. CR - Prob. 57ECh. CR - 58. Economic: supply and demand. Demand and supply...Ch. CR - 59. Find the volume of the solid of revolution...Ch. CR - 60. Find the volume of the solid of revolution...Ch. CR - Consider the data in the following table. Age of...Ch. CR - Prob. 62ECh. CR - Given find each of the following.
63.
Ch. CR - Prob. 64ECh. CR - 65. Maximize subject to the constraint.
Ch. CR - 66. Evaluate
.
Ch. CR - Prob. 67ECh. CR - Solve the differential equation dy/dx=xy.Ch. CR - Solve the differential equation y+4xy=3x, where...Ch. CR - Prob. 70ECh. CR - Prob. 71ECh. CR - Business: distribution of weights. The weight, in...Ch. CR - Business: wait times. The wait time t in minutes,...Ch. CR - Prob. 74ECh. CR - 75. Business: distribution of salaries. The...
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- Given lim x-4 f (x) = 1,limx-49 (x) = 10, and lim→-4 h (x) = -7 use the limit properties to find lim→-4 1 [2h (x) — h(x) + 7 f(x)] : - h(x)+7f(x) 3 O DNEarrow_forward17. Suppose we know that the graph below is the graph of a solution to dy/dt = f(t). (a) How much of the slope field can you sketch from this information? [Hint: Note that the differential equation depends only on t.] (b) What can you say about the solu- tion with y(0) = 2? (For example, can you sketch the graph of this so- lution?) y(0) = 1 y ANarrow_forward(b) Find the (instantaneous) rate of change of y at x = 5. In the previous part, we found the average rate of change for several intervals of decreasing size starting at x = 5. The instantaneous rate of change of fat x = 5 is the limit of the average rate of change over the interval [x, x + h] as h approaches 0. This is given by the derivative in the following limit. lim h→0 - f(x + h) − f(x) h The first step to find this limit is to compute f(x + h). Recall that this means replacing the input variable x with the expression x + h in the rule defining f. f(x + h) = (x + h)² - 5(x+ h) = 2xh+h2_ x² + 2xh + h² 5✔ - 5 )x - 5h Step 4 - The second step for finding the derivative of fat x is to find the difference f(x + h) − f(x). - f(x + h) f(x) = = (x² x² + 2xh + h² - ])- = 2x + h² - 5h ])x-5h) - (x² - 5x) = ]) (2x + h - 5) Macbook Proarrow_forward
- Evaluate the integral using integration by parts. Sx² cos (9x) dxarrow_forwardLet f be defined as follows. y = f(x) = x² - 5x (a) Find the average rate of change of y with respect to x in the following intervals. from x = 4 to x = 5 from x = 4 to x = 4.5 from x = 4 to x = 4.1 (b) Find the (instantaneous) rate of change of y at x = 4. Need Help? Read It Master Itarrow_forwardVelocity of a Ball Thrown into the Air The position function of an object moving along a straight line is given by s = f(t). The average velocity of the object over the time interval [a, b] is the average rate of change of f over [a, b]; its (instantaneous) velocity at t = a is the rate of change of f at a. A ball is thrown straight up with an initial velocity of 128 ft/sec, so that its height (in feet) after t sec is given by s = f(t) = 128t - 16t². (a) What is the average velocity of the ball over the following time intervals? [3,4] [3, 3.5] [3, 3.1] ft/sec ft/sec ft/sec (b) What is the instantaneous velocity at time t = 3? ft/sec (c) What is the instantaneous velocity at time t = 7? ft/sec Is the ball rising or falling at this time? O rising falling (d) When will the ball hit the ground? t = sec Need Help? Read It Watch Itarrow_forward
- Find the slope of the tangent line to the graph of the function at the given point. f(x) = -4x + 5 at (-1, 9) m Determine an equation of the tangent line. y = Need Help? Read It Watch It SUBMIT ANSWERarrow_forwardFind the slope of the tangent line to the graph of the function at the given point. f(x) = 5x-4x² at (-1, -9) m Determine an equation of the tangent line. y = Need Help? Read It Master It SUBMIT ANSWERarrow_forwardFor what value of A and B the function f(x) will be continuous everywhere for the given definition?..arrow_forward
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