Question

Two differential equations are given below.
$A.(x^2+y^2)dx-2xydy=0$
$B.(x^2+sinx)dx+\left(siny\right)dy=0$

can be solved using variable separable method.

• A. Only A
• B. Only B
• C. Both A and B
• D. Neither A nor B

Answer 1

The correct option is B Only B

In variable separable method, we proceed by separating the x terms and y terms to different sides of the equality and then integrate. In this case x and y terms can be separated only in the case of B.