Question:
Mark $(\sqrt{)}$ against the correct answer in the following:
the general solution of the $D E\left(1+x^{2}\right) d y-x y d x=0$ is
A. $y=C\left(1+x^{2}\right)$
B. $y^{2}=C\left(1+x^{2}\right)$
C. $\mathrm{y} \sqrt{1+\mathrm{x}^{2}}=\mathrm{C}$
D. None of these
Solution:
