content area top Part 1 Identify the equation as separable, linear, exact, or having an integrating factor that is a function of either x or y alone. (2 x plus x Superscript negative 1 Baseline y)dxplus(xy minus 1)dyequals0 Question content area bottom Part 1 Select all that apply. A. exact B. has an integrating factor mu(x) or mu(y) not equal to a constant C. linear D. separable E. none of the above