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Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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## Differential Equation Problem

**Given the differential equation:**

\[
(1+x^2)y'' + 2xy' - 2y = 0
\]

**Assume a solution of the form:**

\[
y = \sum_{n=0}^{\infty} c_n x^n
\]

**Choose All Correct Answers Below:**

**Option A:**  
The recurrence relation is given by:

\[
c_{n+2} = \left(\frac{1-n}{1+n}\right) c_n , \quad n=0,1,2,\ldots
\]

**Option B:**  
\( x = -1 \) is an ordinary point.

**Option C:**  
\( x = -1 \) is a singular point.

**Option D:**  
\( y = c_0 \left( 1 + x \arctan(x) \right) + c_1 x \)

**Option E:**  
\( x = 1 \) is an ordinary point.

**Option F:**  
The recurrence relation is given by:

\[
c_{n+2} = \left(\frac{n}{1+n}\right) c_n , \quad n=0,1,2,\ldots
\]

**Option G:**  
\( y = c_0 \arctan(x) + c_1 x^2 \)

**Option H:**  
\( x = 1 \) is a singular point.
Transcribed Image Text:## Differential Equation Problem **Given the differential equation:** \[ (1+x^2)y'' + 2xy' - 2y = 0 \] **Assume a solution of the form:** \[ y = \sum_{n=0}^{\infty} c_n x^n \] **Choose All Correct Answers Below:** **Option A:** The recurrence relation is given by: \[ c_{n+2} = \left(\frac{1-n}{1+n}\right) c_n , \quad n=0,1,2,\ldots \] **Option B:** \( x = -1 \) is an ordinary point. **Option C:** \( x = -1 \) is a singular point. **Option D:** \( y = c_0 \left( 1 + x \arctan(x) \right) + c_1 x \) **Option E:** \( x = 1 \) is an ordinary point. **Option F:** The recurrence relation is given by: \[ c_{n+2} = \left(\frac{n}{1+n}\right) c_n , \quad n=0,1,2,\ldots \] **Option G:** \( y = c_0 \arctan(x) + c_1 x^2 \) **Option H:** \( x = 1 \) is a singular point.
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