MCQ
समीकरण $\frac{d y}{d x}+2 x=e^{3 x}$ का हल है$-$
- ✓$y+x^2=\frac{1}{3} e^{3 x}+c$
- B$y-x^2=\frac{1}{3} e^{3 x}+c$
- C$y+x^2=e^{3 x}+c$
- D$y-x^2=e^{3 x}+c$
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