
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 14.2, Problem 7P
1 to 21. Use the Cauchy-Riemann conditions to find out whether the functions in Problems 1.1 to 1.21 are analytic. Similarly, find out whether the following functions are analytic.
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Chapter 14 Solutions
Mathematical Methods in the Physical Sciences
Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...
Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.1 - Find the real and imaginary parts u(x,y) and...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21 . Use the Cauchy-Riemann conditions to...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - 1 to 21. Use the Cauchy-Riemann conditions to find...Ch. 14.2 - Using the definition (2.1) of (d/dz)f(z), show...Ch. 14.2 - Using the definition (2.1) of (d/dz)f(z), show...Ch. 14.2 - Prob. 27PCh. 14.2 - Using the definition (2.1) of (d/dz)f(z), show...Ch. 14.2 - Problem 28 is the chain rule for the derivative of...Ch. 14.2 - Problem 28 is the chain rule for the derivative of...Ch. 14.2 - Problem 28 is the chain rule for the derivative of...Ch. 14.2 - Using the definition of ez by its power series...Ch. 14.2 - Using the definitions of sin...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - Using series you know from Chapter 1, write the...Ch. 14.2 - In Chapter 12, equations (5.1) and (5.2), we...Ch. 14.2 - Prob. 44PCh. 14.2 - Prob. 45PCh. 14.2 - Prob. 46PCh. 14.2 - Prob. 47PCh. 14.2 - Using polar coordinates (Problem 46), find out...Ch. 14.2 - Prob. 49PCh. 14.2 - Using polar coordinates (Problem 46), find out...Ch. 14.2 - Prob. 51PCh. 14.2 - Prob. 52PCh. 14.2 - Using polar coordinates (Problem 46), find out...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - Show that the following functions are harmonic,...Ch. 14.2 - It can be shown that, if u(x,y) is a harmonic...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate the following line integrals in the...Ch. 14.3 - Evaluate C(z3)dz where C is the indicated closed...Ch. 14.3 - 01+2iz2dz along the indicated paths:Ch. 14.3 - In Chapter 6, Section 11, we showed that a...Ch. 14.3 - In finding complex Fourier series in Chapter 7, we...Ch. 14.3 - If f(z) is analytic on and inside the circle z=1,...Ch. 14.3 - If f(z) is analytic in the disk z2, evaluate...Ch. 14.3 - Use Cauchys theorem or integral formula to...Ch. 14.3 - Use Cauchys theorem or integral formula to...Ch. 14.3 - Use Cauchys theorem or integral formula to...Ch. 14.3 - Use Cauchys theorem or integral formula to...Ch. 14.3 - Differentiate Cauchys formula (3.9) or (3.10) to...Ch. 14.3 - Use Problem 21 to evaluate the following...Ch. 14.3 - Use Problem 21 to evaluate the following...Ch. 14.3 - Use Problem 21 to evaluate the following...Ch. 14.4 - Show that the sum of a power series which...Ch. 14.4 - Show that equation ( 4.4 ) can be written as...Ch. 14.4 - For each of the following functions find the first...Ch. 14.4 - For each of the following functions find the first...Ch. 14.4 - For each of the following functions find the first...Ch. 14.4 - For each of the following functions find the first...Ch. 14.4 - For each of the following functions find the first...Ch. 14.4 - For each of the following functions find the first...Ch. 14.4 - For each of the following functions, say whether...Ch. 14.4 - For each of the following functions, say whether...Ch. 14.4 - For each of the following functions, say whether...Ch. 14.4 - For each of the following functions, say whether...Ch. 14.5 - If C is a circle of radius about z0, show that...Ch. 14.5 - Verify the formulas (4.3) for the coefficients in...Ch. 14.5 - Obtain Cauchys integral formula ( 3.9 ) from the...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Find the Laurent series for the following...Ch. 14.6 - Show that rule B is correct by applying it to...Ch. 14.6 - Derive (6.2) by using the limit definition of the...Ch. 14.6 - Prove rule C for finding the residue at a multiple...Ch. 14.6 - Prove rule C by using (3.9). Hints: If f(z) has a...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Prob. 33PCh. 14.6 - Find the residues of the following functions at...Ch. 14.6 - Find the residues of the following functions at...Ch. 14.6 - For complex z,Jp(z) can be defined by the series...Ch. 14.6 - The gamma function (z) is analytic except for...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - The values of the following integrals are known...Ch. 14.7 - In Example 4 we stated a rule for evaluating a...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - Using the rule of Example 4 (also see problem 21),...Ch. 14.7 - (a) By the method of Example 2 evaluate 0dx1+x4....Ch. 14.7 - Use the method of Problem 30(c) to evaluate...Ch. 14.7 - Use the method of Problem 30(c) and the contour...Ch. 14.7 - Evaluate the following integrals by the method of...Ch. 14.7 - Evaluate the following integrals by the method of...Ch. 14.7 - Evaluate the following integrals by the method of...Ch. 14.7 - Evaluate the following integrals by the method of...Ch. 14.7 - (a) Show that epx1+exdx=sinp for 0p1. Hint: Find...Ch. 14.7 - Using the same contour and method as in Problem...Ch. 14.7 - Evaluate e2x/3coshxdx. Hint: Use a rectangle as in...Ch. 14.7 - Evaluate 0xdxsinhx. Hint: First find the to ...Ch. 14.7 - The Fresnel integrals, 0usinu2du and 0ucosu2du,...Ch. 14.7 - If F(z)=f(z)/f(z) (a) show that the residue of...Ch. 14.7 - By using theorem (7.8), show that z3+z2+9=0 has...Ch. 14.7 - The fundamental theorem of algebra says that every...Ch. 14.7 - As in Problem 43 find out in which quadrants the...Ch. 14.7 - As in Problem 43 find out in which quadrants the...Ch. 14.7 - As in Problem 43 find out in which quadrants the...Ch. 14.7 - As in Problem 43 find out in which quadrants the...Ch. 14.7 - As in Problem 43 find out in which quadrants the...Ch. 14.7 - As in Problem 43 find out in which quadrants the...Ch. 14.7 - Use (7.8) to evaluate...Ch. 14.7 - Use (7.8) to evaluate z3dz1+2z4 around z=1.Ch. 14.7 - Use (7.8) to evaluate z3+4zz4+8z2+16dz around the...Ch. 14.7 - Use (7.8) to evaluate Csec2(z/4)dz1tan(z/4), where...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - Find the inverse Laplace transform of the...Ch. 14.7 - In equation (7.18), let u(x) be an even function...Ch. 14.8 - Let f(z) be expanded in the Laurent series that is...Ch. 14.8 - (a) Show that if f(z) tends to a finite limit as z...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Find out whether infinity is a regular point, an...Ch. 14.8 - Prob. 13PCh. 14.8 - Evaluate the following integrals by computing...Ch. 14.8 - Evaluate the following integrals by computing...Ch. 14.8 - Observe that in Problems 14 and 15 the sum of the...Ch. 14.9 - In these problems you should be able to make rough...Ch. 14.9 - For each of the following functions w=f(z)=u+iv,...Ch. 14.9 - For each of the following functions w=f(z)=u+iv,...Ch. 14.9 - For each of the following functions w=f(z)=u+iv,...Ch. 14.9 - For each of the following functions w=f(z)=u+iv,...Ch. 14.9 - For each of the following functions w=f(z)=u+iv,...Ch. 14.9 - For each of the following functions w=f(z)=u+iv,...Ch. 14.9 - For each of the following functions w=f(z)=u+iv,...Ch. 14.9 - Describe the Riemann surface for w=z3Ch. 14.9 - Describe the Riemann surface for w=zCh. 14.9 - Describe the Riemann surface for w=lnzCh. 14.9 - If w=f(z)=u(x,y)+iv(x,y),f(z) analytic, defines a...Ch. 14.9 - Verify the matrix equation dudv=Jdxdy, where J is...Ch. 14.9 - We have discussed the fact that a conformal...Ch. 14.9 - Compare the directional derivative...Ch. 14.10 - Prove the theorem stated just after (10.2) as...Ch. 14.10 - Assuming from electricity the equations...Ch. 14.10 - A fluid flow is called irrotational if V=0 where...Ch. 14.10 - Let a flat plate in the shape of a quarter-circle,...Ch. 14.10 - Consider a capacitor made of two very large...Ch. 14.10 - Prob. 6PCh. 14.10 - Use the mapping function w=z2 to find the...Ch. 14.10 - Prob. 8PCh. 14.10 - Find and sketch the streamlines for the flow of...Ch. 14.10 - Find and sketch the streamlines for the indicated...Ch. 14.10 - For w=ln[(z+1)/(z1)], show that the images of u=...Ch. 14.10 - Use the results of Problem 11 to solve the...Ch. 14.10 - Let the figure in Problem 12 represent (the cross...Ch. 14.10 - In the figure in Problem 12, let z=1 be a source...Ch. 14.10 - In Problem 14, the streamlines were the images of...Ch. 14.10 - Two long parallel cylinders form a capacitor. (Let...Ch. 14.11 - In Problems 1 and 2, verify that the given...Ch. 14.11 - In Problems 1 and 2, verify that the given...Ch. 14.11 - Liouvilles theorem: Suppose f(z) is analytic for...Ch. 14.11 - Use Liouvilles theorem (Problem 3 ) to prove the...Ch. 14.11 - In Problems 5 to 8, find the residues of the given...Ch. 14.11 - In Problems 5 to $8,$ find the residues of the...Ch. 14.11 - In Problems 5 to 8, find the residues of the given...Ch. 14.11 - In Problems 5 to $8,$ find the residues of the...Ch. 14.11 - In Problems 9 to 10, use Laurent series to find...Ch. 14.11 - In Problems 9 to $10,$ use Laurent series to find...Ch. 14.11 - Find the Laurent series of f(z)=ez/(1z) for z1 and...Ch. 14.11 - Let f(z) be the branch of z21 which is positive...Ch. 14.11 - In Problems 13 and $14,$ find the residues at the...Ch. 14.11 - In Problems 13 and 14, find the residues at the...Ch. 14.11 - In Problem 15 to 20, evaluate the integrals by...Ch. 14.11 - In Problem 15 to 20, evaluate the integrals by...Ch. 14.11 - In Problem 15 to 20, evaluate the integrals by...Ch. 14.11 - In Problem 15 to $20,$ evaluate the integrals by...Ch. 14.11 - In Problem 15 to 20, evaluate the integrals by...Ch. 14.11 - In Problem 15 to $20,$ evaluate the integrals by...Ch. 14.11 - Verify the formulas in Problem 21 to 27 by contour...Ch. 14.11 - Verify the formulas in Problem 21 to 27 by contour...Ch. 14.11 - Verify the formulas in Problem 21 to 27 by contour...Ch. 14.11 - Verify the formulas in Problem 21 to 27 by contour...Ch. 14.11 - Verify the formulas in Problem 21 to 27 by contour...Ch. 14.11 - Verify the formulas in Problem 21 to 27 by contour...Ch. 14.11 - Verify the formulas in Problem 21 to 27 by contour...Ch. 14.11 - Evaluate 0xlnxdx(1+x)2 by using the contour of...Ch. 14.11 - Evaluate 0(lnx)21+x2dx by using the contour of...Ch. 14.11 - Show that PV0cos(lnx)x2+1dx=2cosh(/2) by...Ch. 14.11 - As in Section 7, find out how many roots the...Ch. 14.11 - As in Section 7, find out how many roots the...Ch. 14.11 - As in Section 7, find out how many roots the...Ch. 14.11 - As in Section 7, find out how many roots the...Ch. 14.11 - Show that the Cauchy-Riemann equations [see (2.2)...Ch. 14.11 - Show that a harmonic function u(x,y) is equal at...Ch. 14.11 - A (nonconstant) harmonic function takes its...Ch. 14.11 - Show that a Dirichlet problem (see Chapter 13,...Ch. 14.11 - Use the following sequence of mappings to find the...Ch. 14.11 - Use L13 of the Laplace transform table to find the...Ch. 14.11 - Evaluate by contour integration 0cos2(/2)122d....
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- A tournament is a complete directed graph, for each pair of vertices x, y either (x, y) is an arc or (y, x) is an arc. One can think of this as a round robin tournament, where the vertices represent teams, each pair plays exactly once, with the direction of the arc indicating which team wins. (a) Prove that every tournament has a direct Hamiltonian path. That is a labeling of the teams V1, V2,..., Un so that vi beats Vi+1. That is a labeling so that team 1 beats team 2, team 2 beats team 3, etc. (b) A digraph is strongly connected if there is a directed path from any vertex to any other vertex. Equivalently, there is no partition of the teams into groups A, B so that every team in A beats every team in B. Prove that every strongly connected tournament has a directed Hamiltonian cycle. Use this to show that for any team there is an ordering as in part (a) for which the given team is first. (c) A king in a tournament is a vertex such that there is a direct path of length at most 2 to any…arrow_forwardUse a graphing utility to find the point of intersection, if any, of the graphs of the functions. Round your result to three decimal places. (Enter NONE in any unused answer blanks.) y = 100e0.01x (x, y) = y = 11,250 ×arrow_forwardhow to construct the following same table?arrow_forward
- The following is known. The complete graph K2t on an even number of vertices has a 1- factorization (equivalently, its edges can be colored with 2t - 1 colors so that the edges incident to each vertex are distinct). This implies that the complete graph K2t+1 on an odd number of vertices has a factorization into copies of tK2 + K₁ (a matching plus an isolated vertex). A group of 10 people wants to set up a 45 week tennis schedule playing doubles, each week, the players will form 5 pairs. One of the pairs will not play, the other 4 pairs will each play one doubles match, two of the pairs playing each other and the other two pairs playing each other. Set up a schedule with the following constraints: Each pair of players is a doubles team exactly 4 times; during those 4 matches they see each other player exactly once; no two doubles teams play each other more than once. (a) Find a schedule. Hint - think about breaking the 45 weeks into 9 blocks of 5 weeks. Use factorizations of complete…arrow_forward. The two person game of slither is played on a graph. Players 1 and 2 take turns, building a path in the graph. To start, Player 1 picks a vertex. Player 2 then picks an edge incident to the vertex. Then, starting with Player 1, players alternate turns, picking a vertex not already selected that is adjacent to one of the ends of the path created so far. The first player who cannot select a vertex loses. (This happens when all neighbors of the end vertices of the path are on the path.) Prove that Player 2 has a winning strategy if the graph has a perfect matching and Player 1 has a winning strategy if the graph does not have a perfect matching. In each case describe a strategy for the winning player that guarantees that they will always be able to select a vertex. The strategy will be based on using a maximum matching to decide the next choice, and will, for one of the cases involve using the fact that maximality means no augmenting paths. Warning, the game slither is often described…arrow_forwardLet D be a directed graph, with loops allowed, for which the indegree at each vertex is at most k and the outdegree at each vertex is at most k. Prove that the arcs of D can be colored so that the arcs entering each vertex must have distinct colors and the arcs leaving each vertex have distinct colors. An arc entering a vertex may have the same color as an arc leaving it. It is probably easiest to make use of a known result about edge coloring. Think about splitting each vertex into an ‘in’ and ‘out’ part and consider what type of graph you get.arrow_forward
- 3:56 wust.instructure.com Page 0 Chapter 5 Test Form A of 2 - ZOOM + | Find any real numbers for which each expression is undefined. 2x 4 1. x Name: Date: 1. 3.x-5 2. 2. x²+x-12 4x-24 3. Evaluate when x=-3. 3. x Simplify each rational expression. x²-3x 4. 2x-6 5. x²+3x-18 x²-9 6. Write an equivalent rational expression with the given denominator. 2x-3 x²+2x+1(x+1)(x+2) Perform the indicated operation and simplify if possible. x²-16 x-3 7. 3x-9 x²+2x-8 x²+9x+20 5x+25 8. 4.x 2x² 9. x-5 x-5 3 5 10. 4x-3 8x-6 2 3 11. x-4 x+4 x 12. x-2x-8 x²-4 ← -> Copyright ©2020 Pearson Education, Inc. + 5 4. 5. 6. 7. 8. 9. 10. 11. 12. T-97arrow_forwardplease work out more details give the solution.arrow_forwardProblem #5 Suppose you flip a two sided fair coin ("heads" or "tails") 8 total times. a). How many ways result in 6 tails and 2 heads? b). How many ways result in 2 tails and 6 heads? c). Compare your answers to part (a) and (b) and explain in a few sentences why the comparison makes sense.arrow_forward
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