The Differential Equation $2 x y d x + \left( x ^ { 2 } + 1 \right) d y = 0$

question 24

Multiple Choice

The differential equation $2 x y d x + \left( x ^ { 2 } + 1 \right) d y = 0$ is

• A) exact with solution \(x ^ { 2 } y + y + c\)
• B) exact with solution \(x ^ { 2 } y + y = c\)
• C) exact with solution \(2 x y + y + c\)
• D) exact with solution \(2 x y + y = c\)
• E) not exact

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