Differential Equations with Boundary-Value Problems
9th Edition
ISBN: 9781337632515
Author: Dennis G. Zill
Publisher: Cengage Learning US
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Textbook Question
Chapter 4.3, Problem 19E
In Problems 15–28 find the general solution of the given higher-order differential equation.
19.
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1. Abel's Theorem. The goal in this problem is to prove Abel's theorem by following a series of steps
(each step must be justified).
Theorem 0.1 (Abel's Theorem).
If y1 and y2 are solutions of the differential equation
y" + p(t) y′ + q(t) y = 0,
where p and q are continuous on an open interval, then the Wronskian is given by
W (¥1, v2)(t) = c exp(− [p(t) dt),
where C is a constant that does not depend on t. Moreover, either W (y1, y2)(t) = 0 for every t in I or
W (y1, y2)(t) = 0 for every t in I.
1. (a) From the two equations (which follow from the hypotheses),
show that
y" + p(t) y₁ + q(t) y₁ = 0 and y½ + p(t) y2 + q(t) y2 = 0,
2. (b) Observe that
Hence, conclude that
(YY2 - Y1 y2) + P(t) (y₁ Y2 - Y1 Y2) = 0.
W'(y1, y2)(t) = yY2 - Y1 y2-
W' + p(t) W = 0.
3. (c) Use the result from the previous step to complete the proof of the theorem.
Chapter 4 Solutions
Differential Equations with Boundary-Value Problems
Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - Given that y=c1+c2x2 is a two-parameter family of...Ch. 4.1 - Find two members of the family of solutions in...Ch. 4.1 - Prob. 7ECh. 4.1 - Use the general solution of x + 2x = 0 given in...Ch. 4.1 - In Problems 9 and 10 find an interval centered...Ch. 4.1 - In Problems 9 and 10 find an interval centered...
Ch. 4.1 - (a) Use the family in Problem 1 to find a solution...Ch. 4.1 - Prob. 12ECh. 4.1 - In Problems 13 and 14 the given two-parameter...Ch. 4.1 - In Problems 13 and 14 the given two-parameter...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - Prob. 20ECh. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - Prob. 24ECh. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - Prob. 28ECh. 4.1 - Prob. 29ECh. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - In Problems 31–34 verify that the given...Ch. 4.1 - Prob. 32ECh. 4.1 - In Problems 3134 verify that the given...Ch. 4.1 - In Problems 31–34 verify that the given...Ch. 4.1 - (a) Verify that and are, respectively, particular...Ch. 4.1 - Prob. 36ECh. 4.1 - Prob. 37ECh. 4.1 - Suppose that y1 = ex and y2 = ex are two solutions...Ch. 4.1 - (a) Verify that y1 = x3 and y2 = |x|3 are linearly...Ch. 4.1 - Is the set of functions f1(x) = ex+2, f2(x) = ex3...Ch. 4.1 - Prob. 41ECh. 4.1 - Prob. 42ECh. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - Prob. 6ECh. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - Prob. 21ECh. 4.2 - In Problems 21 and 22 the indicated function y1(x)...Ch. 4.2 - Prob. 23ECh. 4.2 - Prob. 24ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - Prob. 2ECh. 4.3 - Prob. 3ECh. 4.3 - Prob. 4ECh. 4.3 - Prob. 5ECh. 4.3 - Prob. 6ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - Prob. 8ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - Prob. 10ECh. 4.3 - Prob. 11ECh. 4.3 - Prob. 12ECh. 4.3 - Prob. 13ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - Prob. 20ECh. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - Prob. 22ECh. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - Prob. 28ECh. 4.3 - In Problems 2936 solve the given initial-value...Ch. 4.3 - In Problems 2936 solve the given initial-value...Ch. 4.3 - In Problems 2936 solve the given initial-value...Ch. 4.3 - Prob. 32ECh. 4.3 - Prob. 33ECh. 4.3 - Prob. 34ECh. 4.3 - Prob. 35ECh. 4.3 - Prob. 36ECh. 4.3 - Prob. 37ECh. 4.3 - Prob. 38ECh. 4.3 - Prob. 39ECh. 4.3 - In Problems 3740 solve the given boundary-value...Ch. 4.3 - In Problems 41 and 42 solve the given problem...Ch. 4.3 - In Problems 41 and 42 solve the given problem...Ch. 4.3 - Prob. 43ECh. 4.3 - Prob. 44ECh. 4.3 - Prob. 45ECh. 4.3 - Prob. 46ECh. 4.3 - Prob. 47ECh. 4.3 - Prob. 48ECh. 4.3 - In Problems 4958 find a homogeneous linear...Ch. 4.3 - Prob. 50ECh. 4.3 - Prob. 51ECh. 4.3 - Prob. 52ECh. 4.3 - Prob. 53ECh. 4.3 - Prob. 54ECh. 4.3 - Prob. 55ECh. 4.3 - Prob. 56ECh. 4.3 - Prob. 57ECh. 4.3 - Prob. 58ECh. 4.3 - Two roots of a cubic auxiliary equation with real...Ch. 4.3 - Find the general solution of 2 + 7y + 4y 4y 0 if...Ch. 4.3 - Find the general solution of y + 6y + y 34y = 0...Ch. 4.3 - To solve y(4) + y = 0, we must find the roots of...Ch. 4.3 - Prob. 63ECh. 4.3 - Prob. 64ECh. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 9ECh. 4.4 - In Problems 1–26 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 12ECh. 4.4 - In Problems 1–26 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 20ECh. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 27ECh. 4.4 - Prob. 28ECh. 4.4 - Prob. 29ECh. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - Prob. 32ECh. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - Prob. 36ECh. 4.4 - Prob. 37ECh. 4.4 - In Problems 3740 solve the given boundary-value...Ch. 4.4 - Prob. 39ECh. 4.4 - In Problems 3740 solve the given boundary-value...Ch. 4.4 - In Problems 41 and 42 solve the given...Ch. 4.4 - In Problems 41 and 42 solve the given...Ch. 4.4 - Consider the differential equation ay + by + cy =...Ch. 4.4 - Prob. 44ECh. 4.4 - In Problems 4548 without solving, match a solution...Ch. 4.4 - In Problems 4548 without solving, match a solution...Ch. 4.4 - In Problems 4548 without solving, match a solution...Ch. 4.4 - Prob. 48ECh. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - Prob. 4ECh. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - Prob. 6ECh. 4.5 - Prob. 7ECh. 4.5 - Prob. 8ECh. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 1114 verify that the given...Ch. 4.5 - In Problems 1114 verify that the given...Ch. 4.5 - In Problems 11-14 verify that the given...Ch. 4.5 - In Problems 11-14 verify that the given...Ch. 4.5 - In Problems 15-26 find a linear differential...Ch. 4.5 - Prob. 16ECh. 4.5 - Prob. 17ECh. 4.5 - Prob. 18ECh. 4.5 - Prob. 19ECh. 4.5 - Prob. 20ECh. 4.5 - In Problems 15-26 find a linear differential...Ch. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - Prob. 23ECh. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - In Problems 27-34 find linearly independent...Ch. 4.5 - In Problems 27-34 find linearly independent...Ch. 4.5 - In Problems 27-34 find linearly independent...Ch. 4.5 - Prob. 30ECh. 4.5 - Prob. 31ECh. 4.5 - Prob. 32ECh. 4.5 - In Problems 2734 find linearly independent...Ch. 4.5 - Prob. 34ECh. 4.5 - In Problems 35-64 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - Prob. 39ECh. 4.5 - Prob. 40ECh. 4.5 - Prob. 41ECh. 4.5 - Prob. 42ECh. 4.5 - Prob. 43ECh. 4.5 - Prob. 44ECh. 4.5 - Prob. 45ECh. 4.5 - Prob. 46ECh. 4.5 - Prob. 47ECh. 4.5 - In Problems 35-64 solve the given differential...Ch. 4.5 - Prob. 49ECh. 4.5 - Prob. 50ECh. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - Prob. 52ECh. 4.5 - Prob. 53ECh. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - Prob. 60ECh. 4.5 - Prob. 61ECh. 4.5 - Prob. 62ECh. 4.5 - Prob. 63ECh. 4.5 - Prob. 64ECh. 4.5 - Prob. 65ECh. 4.5 - Prob. 66ECh. 4.5 - Prob. 67ECh. 4.5 - Prob. 68ECh. 4.5 - Prob. 69ECh. 4.5 - In Problems 6572 solve the given initial-value...Ch. 4.5 - Prob. 71ECh. 4.5 - Prob. 72ECh. 4.5 - Prob. 73ECh. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - Prob. 4ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - Prob. 6ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - Prob. 11ECh. 4.6 - Prob. 12ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - Prob. 16ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - Prob. 18ECh. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - Prob. 23ECh. 4.6 - In Problems 23-26 proceed as in Example 3 and...Ch. 4.6 - In Problems 23-26 proceed as in Example 3 and...Ch. 4.6 - In Problems 23-26 proceed as in Example 3 and...Ch. 4.6 - In Problems 27 and 28 the indicated functions are...Ch. 4.6 - In Problems 27 and 28 the indicated functions are...Ch. 4.6 - Prob. 29ECh. 4.6 - In Problems 2932 solve the given third-order...Ch. 4.6 - Prob. 31ECh. 4.6 - Prob. 32ECh. 4.6 - In Problems 33 and 34 discuss how the methods of...Ch. 4.6 - Prob. 34ECh. 4.6 - Prob. 35ECh. 4.6 - Find the general solution of x4y+x3y4x2y=1 given...Ch. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 3ECh. 4.7 - Prob. 4ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 6ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 8ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 10ECh. 4.7 - Prob. 11ECh. 4.7 - Prob. 12ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 15ECh. 4.7 - Prob. 16ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 18ECh. 4.7 - In Problems 19-24 solve the given partial equation...Ch. 4.7 - Prob. 20ECh. 4.7 - Prob. 21ECh. 4.7 - Prob. 22ECh. 4.7 - In Problems 19-24 solve the given partial equation...Ch. 4.7 - In Problems 1924 solve the given differential...Ch. 4.7 - In Problems 2530 solve the given initial-value...Ch. 4.7 - Prob. 26ECh. 4.7 - Prob. 27ECh. 4.7 - In Problems 25-30 solve the given initial-value...Ch. 4.7 - Prob. 29ECh. 4.7 - In Problems 25-30 solve the given initial-value...Ch. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - Prob. 32ECh. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - Prob. 35ECh. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - Prob. 37ECh. 4.7 - In Problems 37 and 38 use the substitution t = x...Ch. 4.7 - Prob. 39ECh. 4.7 - Prob. 40ECh. 4.7 - Prob. 41ECh. 4.7 - Prob. 42ECh. 4.7 - Prob. 43ECh. 4.7 - Prob. 44ECh. 4.7 - Prob. 45ECh. 4.7 - Prob. 46ECh. 4.7 - Bending of a Circular Plate In the analysis of the...Ch. 4.7 - Prob. 48ECh. 4.8 - In Problems 16 proceed as in Example 1 to find a...Ch. 4.8 - In Problems 16 proceed as in Example 1 to find a...Ch. 4.8 - Prob. 3ECh. 4.8 - Prob. 4ECh. 4.8 - Prob. 5ECh. 4.8 - Prob. 6ECh. 4.8 - Prob. 7ECh. 4.8 - In Problems 712 proceed as in Example 2 to find...Ch. 4.8 - Prob. 9ECh. 4.8 - Prob. 10ECh. 4.8 - Prob. 11ECh. 4.8 - Prob. 12ECh. 4.8 - Prob. 13ECh. 4.8 - Prob. 14ECh. 4.8 - Prob. 15ECh. 4.8 - Prob. 16ECh. 4.8 - Prob. 17ECh. 4.8 - In Problems 13-18 proceed as in Example 3 to find...Ch. 4.8 - Prob. 19ECh. 4.8 - Prob. 20ECh. 4.8 - Prob. 21ECh. 4.8 - Prob. 22ECh. 4.8 - In Problems 19-30 proceed as in Example 5 to find...Ch. 4.8 - Prob. 24ECh. 4.8 - Prob. 25ECh. 4.8 - Prob. 26ECh. 4.8 - Prob. 27ECh. 4.8 - Prob. 28ECh. 4.8 - Prob. 29ECh. 4.8 - Prob. 30ECh. 4.8 - Prob. 31ECh. 4.8 - In Problems 31-34 proceed as in Example 6 to find...Ch. 4.8 - Prob. 33ECh. 4.8 - Prob. 34ECh. 4.8 - Prob. 35ECh. 4.8 - Prob. 36ECh. 4.8 - Prob. 37ECh. 4.8 - Prob. 38ECh. 4.8 - Prob. 39ECh. 4.8 - Prob. 40ECh. 4.8 - Prob. 41ECh. 4.8 - In Problems 39-44 proceed as in Examples 7 and 8...Ch. 4.8 - Prob. 43ECh. 4.8 - Prob. 44ECh. 4.9 - In Problems 120 solve the given system of...Ch. 4.9 - Prob. 2ECh. 4.9 - Prob. 3ECh. 4.9 - Prob. 4ECh. 4.9 - Prob. 5ECh. 4.9 - Prob. 6ECh. 4.9 - Prob. 7ECh. 4.9 - In Problems 120 solve the given system of...Ch. 4.9 - Prob. 9ECh. 4.9 - Prob. 10ECh. 4.9 - Prob. 11ECh. 4.9 - Prob. 12ECh. 4.9 - Prob. 13ECh. 4.9 - Prob. 14ECh. 4.9 - Prob. 15ECh. 4.9 - Prob. 16ECh. 4.9 - Prob. 17ECh. 4.9 - In Problems 120 solve the given system of...Ch. 4.9 - Prob. 19ECh. 4.9 - Prob. 20ECh. 4.9 - Prob. 21ECh. 4.9 - Prob. 22ECh. 4.9 - Projectile Motion A projectile shot from a gun has...Ch. 4.9 - Prob. 24ECh. 4.9 - Prob. 25ECh. 4.10 - Prob. 1ECh. 4.10 - Prob. 2ECh. 4.10 - In Problems 3-6 the dependent variable y is...Ch. 4.10 - Prob. 4ECh. 4.10 - In Problems 3-6 the dependent variable y is...Ch. 4.10 - Prob. 6ECh. 4.10 - In Problems 710 the independent variable x is...Ch. 4.10 - Prob. 8ECh. 4.10 - Prob. 9ECh. 4.10 - Prob. 10ECh. 4.10 - Prob. 11ECh. 4.10 - In Problems 11 and 12 solve the given...Ch. 4.10 - Prob. 13ECh. 4.10 - Prob. 14ECh. 4.10 - Prob. 15ECh. 4.10 - In Problems 15 and 16 show that the substitution u...Ch. 4.10 - In Problems 17–20 proceed as in Example 3 and...Ch. 4.10 - Prob. 18ECh. 4.10 - Prob. 19ECh. 4.10 - Prob. 20ECh. 4.10 - In calculus the curvature of a curve that is...Ch. 4.10 - Prob. 22ECh. 4.10 - Discuss how the method of reduction of order...Ch. 4.10 - Prob. 24ECh. 4.10 - Prob. 25ECh. 4 - Answer Problems 110 without referring back to the...Ch. 4 - Answer Problems 110 without referring back to the...Ch. 4 - Answer Problems 110 without referring back to the...Ch. 4 - Prob. 4RECh. 4 - Prob. 5RECh. 4 - Prob. 6RECh. 4 - Prob. 7RECh. 4 - Prob. 8RECh. 4 - Prob. 9RECh. 4 - If y1 = ex and y2 = ex are solutions of...Ch. 4 - Prob. 11RECh. 4 - Without the aid of the Wronskian, determine...Ch. 4 - Suppose m1 = 3, m2 = 5, and m3 = 1 are roots of...Ch. 4 - Prob. 14RECh. 4 - In Problems 15 and 16 find a homogeneous...Ch. 4 - Prob. 16RECh. 4 - In Problems 1732 use the procedures developed in...Ch. 4 - Prob. 18RECh. 4 - Prob. 19RECh. 4 - Prob. 20RECh. 4 - In Problems 1732 use the procedures developed in...Ch. 4 - Prob. 22RECh. 4 - Prob. 23RECh. 4 - Prob. 24RECh. 4 - Prob. 25RECh. 4 - Prob. 26RECh. 4 - Prob. 27RECh. 4 - Prob. 28RECh. 4 - Prob. 29RECh. 4 - Prob. 30RECh. 4 - Prob. 31RECh. 4 - Prob. 32RECh. 4 - In Problems 33 and 34 write down the form of the...Ch. 4 - Prob. 34RECh. 4 - Prob. 35RECh. 4 - Prob. 36RECh. 4 - Prob. 37RECh. 4 - Prob. 38RECh. 4 - Prob. 39RECh. 4 - Prob. 40RECh. 4 - Prob. 41RECh. 4 - Prob. 42RECh. 4 - Prob. 43RECh. 4 - Prob. 44RECh. 4 - Prob. 46RECh. 4 - Prob. 47RECh. 4 - In Problems 47-50 use systematic elimination to...Ch. 4 - Prob. 49RECh. 4 - Prob. 50RE
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