Which of the following equations is NOT an exact equation OA. (2x sin y + y)dx + (x² cos y + x)dy = 0 B. 1 C. (xy - cos x)dx + (x² − 1)dy = 0| - D. cos y dx - (x siny - y²)dy = 0 OE. ²1/dx - 3/2dy = y y² O F. All of the Choices None of the Choices

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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Which of the following equations is NOT an exact equation?
O
A. (2x sin y + y)dx + (x² cos y + x)dy = 0
B.
E.
= dx = 2/2dy = 0
-
y²
(xy
D. cos y dx
O F.
cos x) dx + (x² − 1)dy
(xsin y - y²)dy = 0
All of the Choices
=
None of the Choices
0
Transcribed Image Text:Which of the following equations is NOT an exact equation? O A. (2x sin y + y)dx + (x² cos y + x)dy = 0 B. E. = dx = 2/2dy = 0 - y² (xy D. cos y dx O F. cos x) dx + (x² − 1)dy (xsin y - y²)dy = 0 All of the Choices = None of the Choices 0
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