b. Determine whether or not the given function is a solution of the given differential equation where both A and B are constants.\fQuestion 3 Form the differential equation from the given expression by eliminating the constants C and D.\fQuestion 4 Determine whether the differential equations given below are separable. If the equation is separable, solve it. i. 2xy' = 1-2y +y3 dy ii. = coty dx\fQuestion 5 In the following problems, some differential equations are homogeneous and some are not. Solve those that are homogeneous. dy y-+2xy dxiv. -(3y - 2x)dx + (7y~ +x)dy =0 V. txdt E (t? - x2 ) dx