The differential equation obtained by eliminating C from x²+y²=C is:
The differential equation obtained by eliminating C from x²+y²=C is:
- A. x + y(dy/dx)=0
- B. x(dy/dx)+y=0
- C. dy/dx=x/y
- D. dy/dx=y/x
Answer: B) x(dy/dx)+y=0
Explanation: Differentiating gives 2x+2y(dy/dx)=0.
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