Mathematical Methods in the Physical Sciences
3rd Edition
ISBN: 9780471198260
Author: Mary L. Boas
Publisher: Wiley, John & Sons, Incorporated
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Textbook Question
Chapter 2.14, Problem 18P
Evaluate each if the following in x+iy, and compare with a computer solution.
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Chapter 2 Solutions
Mathematical Methods in the Physical Sciences
Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...
Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Prove that the conjugate of the quotient of two...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Show that z1z2 is the distance between the points...Ch. 2.5 - Find x and y as functions of t for the example...Ch. 2.5 - Find and a if z=(1it)/(2t+i).Ch. 2.5 - Find and a if z=cos2t+isin2t. Can you describe...Ch. 2.6 - Prove that an absolutely convergent series of...Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Prove that a series of complex terms diverges if...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Verify the series in (7.3) by computer. Also show...Ch. 2.8 - Show from the power series (8.1) that...Ch. 2.8 - Show from the power series (8.1) that ddzez=ezCh. 2.8 - Find the power series for excosx and for exsinx...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Show that for any real y,eiy=1. Hence show that...Ch. 2.9 - Show that the absolute value of a product of two...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Prob. 38PCh. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Using the fact that a complex equation is really...Ch. 2.10 - As in Problem 27, find the formulas for sin3 and...Ch. 2.10 - Show that the center of mass of three identical...Ch. 2.10 - Show that the sum of the three cube roots of 8 is...Ch. 2.10 - Show that the sum of the n nth roots of any...Ch. 2.10 - The three cube roots of +1 are often called...Ch. 2.10 - Verify the results given for the roots in Example...Ch. 2.11 - Define sin z and Cos z by their power series....Ch. 2.11 - Solve the equations ei=cosisin,forcosandsin and so...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - Evaluate eax(acosbx+bsinbx)a2+b2 and take real...Ch. 2.11 - Evaluate e(a+ib)xdx and take real and imaginary...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Show that enz=(coshz+sinhz)n=coshnz+sinhnz. Use...Ch. 2.12 - Use a computer to plot graphs of sinh x, cosh x,...Ch. 2.12 - Using (12.2) and (8. l), find, in summation form,...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - The functions sin t, cos t, …, are called...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Prob. 12PCh. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Show that (ab)c can have more values than abc. As...Ch. 2.14 - Use a computer to find the three solutions of the...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Prob. 7PCh. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Show that tan z never takes the values +1. Hint:...Ch. 2.15 - Show that tanh z never takes the values +1.Ch. 2.16 - Show that if the line through the origin and the...Ch. 2.16 - In each of the following problems, z represents...Ch. 2.16 - In each of the following problems, z represents...Ch. 2.16 - Z=(1+i)t-(2+i)(1-t). Hint: Show that the particle...Ch. 2.16 - z=z1t+z2(1t). Hint: See Problem 4; the straight...Ch. 2.16 - In electricity we learn that the resistance of two...Ch. 2.16 - In electricity we learn that the resistance of two...Ch. 2.16 - Find the impedance of the circuit in Figure 16.2...Ch. 2.16 - For the circuit in Figure 16.1: (a) Find in terms...Ch. 2.16 - Repeat Problem 9 for a circuit consisting of R, L,...Ch. 2.16 - Prove that...Ch. 2.16 - In optics, the following expression needs to be...Ch. 2.16 - Verify that eit, eit, cost, and sint satisfy...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Prob. 13MPCh. 2.17 - Find the disk of convergence of the series ...Ch. 2.17 - For what z is the series z1nn absolutely...Ch. 2.17 - Describe the set of points z for which Re(ei/2z)2.Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - (a) Show that cosz=cosz. (b) Is sinz=sinz? (c) If...Ch. 2.17 - Find 2eiiiei+2. Hint: See equation (5.1).Ch. 2.17 - Show that Rez=12(z+z) and that Imz=(1/2i)(zz)....Ch. 2.17 - Evaluate the following absolute square of a...Ch. 2.17 - If z=ab and 1a+b=1a+1b, find z.Ch. 2.17 - Write the series for ex(1+i). Write 1+i in the rei...Ch. 2.17 - Show that if a sequence of complex numbers tends...Ch. 2.17 - Use a series you know to show that n=0(1+i)nn!=e.
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- This year Amanda decides to invest in two different no-load mutual funds: the G Fund or the L Mutual Fund. At the end of each year, she liquidates her holdings, takes her profits, and then reinvests. The yearly profits of the mutual funds depend on where the market stood at the end of the preceding year. Recently the market has been oscillating around level 2 from one year end to the next, according to the probabilities given in the following transition matrix : L1 L2 L3 L1 0.2 0.4 0.4 L2 0.1 0.4 0.5 L3 0.3 0.3 0.4 Each year that the market moves up (down) 1 level, the G Fund has profits (losses) of $20k, while the L Fund has profits (losses) of $10k. If the market moves up (down) 2 level in a year, the G Fund has profits (losses) of $50k, while the L Fund has profits (losses) of only $20k. If the market does not change, there is no profit or loss for either fund. Amanda wishes to determine her optimal investment policy in order to maximize her (long-run) expected average profit per…arrow_forwardEvaluate F. dr where F(x, y, z) = (2yz cos(xyz), 2xzcos(xyz), 2xy cos(xyz)) and C is the line π 1 1 segment starting at the point (8, ' and ending at the point (3, 2 3'6arrow_forwardSolve this questions pleasearrow_forward
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- Question: A company launches two different marketing campaigns to promote the same product in two different regions. After one month, the company collects the sales data (in units sold) from both regions to compare the effectiveness of the campaigns. The company wants to determine whether there is a significant difference in the mean sales between the two regions. Perform a two sample T-test You can provide your answer by inserting a text box and the answer must include: Null hypothesis, Alternative hypothesis, Show answer (output table/summary table), and Conclusion based on the P value. (2 points = 0.5 x 4 Answers) Each of these is worth 0.5 points. However, showing the calculation is must. If calculation is missing, the whole answer won't get any credit.arrow_forwardBinomial Prob. Question: A new teaching method claims to improve student engagement. A survey reveals that 60% of students find this method engaging. If 15 students are randomly selected, what is the probability that: a) Exactly 9 students find the method engaging?b) At least 7 students find the method engaging? (2 points = 1 x 2 answers) Provide answers in the yellow cellsarrow_forwardIn a survey of 2273 adults, 739 say they believe in UFOS. Construct a 95% confidence interval for the population proportion of adults who believe in UFOs. A 95% confidence interval for the population proportion is ( ☐, ☐ ). (Round to three decimal places as needed.)arrow_forward
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