MCQ
The general solution of `(1 + e^{x/y})dx + e^{x/y}(1 - x/y)dy = 0` is ______
- A`ye^{y/x} + x = c`
- B`ye^{x/y} + y = c`
- C`ye^y - x = c`
- ✓`ye^{x/y} + x = c`
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R = radius of the earth
