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