Calculus for Business Economics Life Sciences and Social Sciences Plus NEW
13th Edition
ISBN: 9780321925138
Author: Raymond Barnett
Publisher: PEARSON
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Chapter B.1, Problem 61E
In Problems 59–62, discuss the validity of each statement. If the statement is true, explain why. If not, give a counterexample.
61. For each positive integer n, the sum of the series
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7. Show that for R sufficiently large, the polynomial P(z) in Example 3, Sec. 5, satisfies
the inequality
|P(z)| R.
Suggestion: Observe that there is a positive number R such that the modulus of
each quotient in inequality (9), Sec. 5, is less than |an|/n when |z| > R.
9. Establish the identity
1-
1+z+z² +
2n+1
...
+z" =
1- z
(z1)
and then use it to derive Lagrange's trigonometric identity:
1
1+ cos cos 20 +... + cos no =
+
2
sin[(2n+1)0/2]
2 sin(0/2)
(0 < 0 < 2л).
Suggestion: As for the first identity, write S = 1+z+z² +...+z" and consider
the difference S - zS. To derive the second identity, write z =
eie in the first one.
8. Prove that two nonzero complex numbers z₁ and Z2 have the same moduli if and only if
there are complex numbers c₁ and c₂ such that Z₁ = c₁C2 and Z2 = c1c2.
Suggestion: Note that
(i≤
exp (101+0) exp (01-02)
and [see Exercise 2(b)]
2
02
Ꮎ
-
= = exp(i01)
exp(101+0) exp (i 01 - 02 ) = exp(102).
i
2
2
Chapter B.1 Solutions
Calculus for Business Economics Life Sciences and Social Sciences Plus NEW
Ch. B.1 - Write the first four terms of each sequence: (A)...Ch. B.1 - Find the general term of a sequence whose first...Ch. B.1 - Write k=15k+1k without summation notation. Do not...Ch. B.1 - Write the alternating series 113+19127+181 using...Ch. B.1 - Find the arithmetic mean of 9, 3, 8, 4, 3, and 6.Ch. B.1 - Prob. 1ECh. B.1 - Write the first four terms for each sequence in...Ch. B.1 - Prob. 3ECh. B.1 - Write the first four terms for each sequence in...Ch. B.1 - Write the first four terms for each sequence in...
Ch. B.1 - Write the first four terms for each sequence in...Ch. B.1 - Write the 10th term of the sequence in Problem 1....Ch. B.1 - Write the 15th term of the sequence in Problem 2....Ch. B.1 - Write the 99th term of the sequence in Problem 3....Ch. B.1 - Prob. 10ECh. B.1 - Prob. 11ECh. B.1 - In Problems 1116, write each series in expanded...Ch. B.1 - In Problems 1116, write each series in expanded...Ch. B.1 - Prob. 14ECh. B.1 - Prob. 15ECh. B.1 - Prob. 16ECh. B.1 - Find the arithmetic mean of each list of numbers...Ch. B.1 - Prob. 18ECh. B.1 - Find the arithmetic mean of each list of numbers...Ch. B.1 - Prob. 20ECh. B.1 - Write the first five terms of each sequence in...Ch. B.1 - Write the first five terms of each sequence in...Ch. B.1 - Write the first five terms of each sequence in...Ch. B.1 - Write the first five terms of each sequence in...Ch. B.1 - Write the first five terms of each sequence in...Ch. B.1 - Write the first five terms of each sequence in...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - Prob. 32ECh. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - Prob. 34ECh. B.1 - Prob. 35ECh. B.1 - Prob. 36ECh. B.1 - Prob. 37ECh. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - In Problems 2742, find the general term of a...Ch. B.1 - Write each series in Problems 4350 in expanded...Ch. B.1 - Write each series in Problems 4350 in expanded...Ch. B.1 - Write each series in Problems 4350 in expanded...Ch. B.1 - Write each series in Problems 4350 in expanded...Ch. B.1 - Write each series in Problems 4350 in expanded...Ch. B.1 - Prob. 48ECh. B.1 - Prob. 49ECh. B.1 - Write each series in Problems 4350 in expanded...Ch. B.1 - Write each series in Problems 5154 using summation...Ch. B.1 - Write each series in Problems 5154 using summation...Ch. B.1 - Write each series in Problems 5154 using summation...Ch. B.1 - Write each series in Problems 5154 using summation...Ch. B.1 - Write each series in Problems 5558 using summation...Ch. B.1 - Write each series in Problems 5558 using summation...Ch. B.1 - Write each series in Problems 5558 using summation...Ch. B.1 - Write each series in Problems 5558 using summation...Ch. B.1 - In Problems 5962, discuss the validity of each...Ch. B.1 - In Problems 5962, discuss the validity of each...Ch. B.1 - In Problems 5962, discuss the validity of each...Ch. B.1 - Prob. 62ECh. B.1 - Prob. 63ECh. B.1 - Some sequences are defined by a recursion...Ch. B.1 - Some sequences are defined by a recursion...Ch. B.1 - Some sequences are defined by a recursion...Ch. B.1 - If A is a positive real number, the terms of the...Ch. B.1 - Prob. 68ECh. B.1 - The sequence defined recursively by a1 = 1, a2 =...Ch. B.1 - The sequence defined by bn=55(1+52)n is related to...
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- numerical anaarrow_forward13. If X has the distribution function F(x) = 0 1 12 for x < -1 for -1x < 1 for 1x <3 2 3 for 3≤x≤5 4 1 for x≥5 find (a) P(X ≤3); (b) P(X = 3); (c) P(X < 3); (d) P(X≥1); (e) P(-0.4arrow_forwardTwo measurements are made of some quantity. For the first measurement, the average is 74.4528, the RMS error is 6.7441, and the uncertainty of the mean is 0.9264. For the second one, the average is 76.8415, the standard deviation is 8.3348, and the uncertainty of the mean is 1.1448. The expected value is exactly 75. 13. Express the first measurement in public notation. 14. Is there a significant difference between the two measurements? 1 15. How does the first measurement compare with the expected value? 16. How does the second measurement compare with the expected value?arrow_forwardNo chatgpt pls will upvote Already got wrong chatgpt answer .arrow_forwardIf you use any chatgpt will downvote.arrow_forwardPlease help I'm a working mom trying to help my son last minute (6th grader)! Need help with the blank ones and check the ones he got with full calculation so we can use it to study! Especially the mixed number fractions cause I'm rusty. Thanks in advance!arrow_forward|| 38 5층-11- 6 4 7 2 6arrow_forward4. Consider the initial value problem y' = 3x(y-1) 1/3, y(xo) = yo. (a) For what points (co, yo) does the IVP have a solution? (b) For what points (xo, yo) does the IVP have a unique solution on some open interval that contains 20? (c) Solve the IVP y' = 3x(y-1) 1/3, y(0) = 9 and determine the largest open interval on which this solution is unique.arrow_forwardFind the limit. (If the limit is infinite, enter 'oo' or '-o', as appropriate. If the limit does not otherwise exist, enter DNE.) lim X→ ∞ (✓ 81x2 - 81x + x 9x)arrow_forwardPlease solve the following Statistics and Probability Problem (show all work) : The probability that a patient recovers from a rare blood disease is 0.4 and 10 people are known to havecontracted this disease. Let X denote the random variable which denotes the number of patient who survivefrom the disease.1. Plot the probability mass function (pmf) of X.2. Plot the cumulative distribution function (cdf) of X.3. What is the probability that at least 8 survive, i.e., P {X ≥ 8}?4. What is the probability that 3 to 8 survive, i.e., P {3 ≤ X ≤ 8}?arrow_forwardthink about what you know about measurements. fill in each box. use words, numbers, and pictures. Show as many ideas as you can.arrow_forwardPlease solve the following Probability and Statistics problem (show all work and double check solution is correct): Suppose that a die is rolled twice. What are the possible values that the following random variables can take1. the maximum value to appear in the two rolls;2. the value of the first roll minus the value of the second roll?3. Calculate the probabilities associated with the above two random variables?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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