If √(x) + √(y) = √(a), then dy/dx is:
If √(x) + √(y) = √(a), then dy/dx is:
- A. −√(y/x)
- B. √(y/x)
- C. −√(x/y)
- D. √(x/y)
Answer: A) −√(y/x)
Explanation: Differentiating: (1/(2√x)) + (1/(2√y)) dy/dx = 0 → dy/dx = −√(y/x).
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