In each of Problems the given equation. 18. (3x²y+2xy 18 through 21, find an integrating factor and solve + y³) + (x² + y²) y' = 0

Advanced Engineering Mathematics
10th Edition
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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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In each of Problems 18 through 21, find an integrating factor and solve
the given equation.
18. (3x²y + 2xy + y³) + (x² + y²) y' = 0
19. y'=e²x +y-1
20. 1+(x/y sin y) y' = 0
21. y+ (2xy-e-2y) y'=0
Transcribed Image Text:In each of Problems 18 through 21, find an integrating factor and solve the given equation. 18. (3x²y + 2xy + y³) + (x² + y²) y' = 0 19. y'=e²x +y-1 20. 1+(x/y sin y) y' = 0 21. y+ (2xy-e-2y) y'=0
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