TEST YOUR UNDERSTANDING! ANSWER KEY- Find the G.S. about xo = 0 for the following DE's 1. (x²+4)y" + 2xy' - 12y = 0 5 Answer: y = a₁ + a₁x + 129₁x² + 2x2(x+1)34x2k (2k-3)(2k-1) k=1 2. (1+x²)y" + 10xy' + 20y = 0 (-1) (2k + 1)(2k + 3)(k+1) aox2k. (−1)k(k+ 1)(k+ 2)(2k + 3)a₂x²k+1 Answer: y = a + a₁x + 3 6 k=1 3. (x²+4)y" + xy = x+2 a₁ + Answer: y = -Σanx ao + a₁x 1-ao. 24 48 712=0 1 - 2-a 320 ²x² +. ***

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.2: Polynomial Functinos And Their Graphs
Problem 2E: Describe the end behavior of each polynomial. (a) y=x38x2+2x15 End behavior: y as x y as x (b)...
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Solve for the general solution using the Power Series. The answers were already given, you just have to provide the solutions.
TEST YOUR UNDERSTANDING! ANSWER KEY-
Find the G.S. about xo = 0 for the following DE's
1. (x²+4)y" + 2xy' - 12y = 0
80
5
Answer: y = a₁ + a₁x +29₁x²³ +
(-1)k (k+1)3aox²k
22k (2k-3)(2k-1)
k=1
2. (1+x²)y" + 10xy' + 20y = 0
Answer: y = a + a₁x +
(−1)k (2k + 1)(2k + 3)(k+1)α₁x²k,
3
k=1
3. (x² + 4)y" + xy = x + 2
1-ao
Answer: y =
a₁ + 2
La
anx"=
24
48
72=0
ao + a₁x + = x² +
-x3
(−1)k(k+ 1)(k+ 2)(2k + 3) a₁x²k+1
6
2-ao
320
2²x5
Transcribed Image Text:TEST YOUR UNDERSTANDING! ANSWER KEY- Find the G.S. about xo = 0 for the following DE's 1. (x²+4)y" + 2xy' - 12y = 0 80 5 Answer: y = a₁ + a₁x +29₁x²³ + (-1)k (k+1)3aox²k 22k (2k-3)(2k-1) k=1 2. (1+x²)y" + 10xy' + 20y = 0 Answer: y = a + a₁x + (−1)k (2k + 1)(2k + 3)(k+1)α₁x²k, 3 k=1 3. (x² + 4)y" + xy = x + 2 1-ao Answer: y = a₁ + 2 La anx"= 24 48 72=0 ao + a₁x + = x² + -x3 (−1)k(k+ 1)(k+ 2)(2k + 3) a₁x²k+1 6 2-ao 320 2²x5
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