MCQ
Choose the correct answer from the given four option.
The solution of the differential equation $\frac{\text{d}\text{y}}{\text{d}\text{x}}=\frac{1+\text{y}^2}{1+\text{x}^2}$ is:
The solution of the differential equation $\frac{\text{d}\text{y}}{\text{d}\text{x}}=\frac{1+\text{y}^2}{1+\text{x}^2}$ is:
- A$\text{y}=\tan^{-1}\text{x}$
- ✓$\text{y}-\text{x}=\text{k}(1+\text{xy})$
- C$\text{x}=\tan^{-1}\text{y}$
- D$\tan(\text{xy})=\text{k}$