MCQ
The differential equation of all parabolas whose axes are parallel to $y-$axis is:
- ✓$\frac{\text{dy}}{\text{dx}}=-\frac{\text{c}^2}{\text{x}^2}$
- B$\frac{\text{d}^2\text{x}}{\text{dy}^2}=\text{c}$
- C$\frac{\text{d}^3\text{y}}{\text{dx}^3}+\frac{\text{d}^2\text{x}}{\text{dy}^2}=0$
- D$\frac{\text{d}^2\text{y}}{\text{dx}^2}+2\frac{\text{dy}}{\text{dx}}=0$