MCQ
The solution of `dy/dx + y cotx = cosecx` is ______
- A$y \sec ^3 x=\sec ^2 x+c$
- B$y \sin ^2 x=x+c$
- ✓$y sinx = x + c$
- D$y \sec ^2 x=x+c$
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The change in internal energy of the gas during the transition is ____________.