Which of the following equations is NOT an exact equation? A cos y dx - (x sin y - y?) dy = 0 B) none of the choices dy = 0 (2x sin y + y)dx + (x² cos y + x)dy = 0 E ( xy – cos y) d x + ( x² + 1) dy = 0

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A: I am attaching image so that you understand each and every step.

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Q: Which of the following equations is NOT an exact equation? A (2x sin y + y)dx + (x² cos y + x)dy = 0…

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