Textile Engineering > GATE 2024 > Differential Equations
The differential equation
dy/dx = M(x, y) / N(x, y)
is exact if _______.
A
∂M / ∂y = ∂N / ∂x
B
∂M / ∂x = ∂N / ∂y
C
∂M / ∂y + ∂N / ∂x = 0
D
(∂M / ∂y) × (∂N / ∂x) = 0

Correct : a

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