Questions in diff-equation

Select	Question
	The differential equation whose solution is $y=A\sin x+B\cos x,$ is
	The differential equation of the family of curves $y=a\cos (x+b)$ is
	The differential equation for all the straight lines which are at a unit distance from the origin is
	If $y=c{{e}^{{{\sin }^{-1}}x}}$, then corresponding to this the differential equation is
	The differential equation of the family of curves represented by the equation ${{x}^{2}}y=a$, is
	The elimination of the arbitrary constant m from the equation $y={{e}^{mx}}$gives the differential equation
	The differential equation whose solution is $y={{c}_{1}}\cos ax+{{c}_{2}}\sin ax$ is (Where ${{c}_{1}},\ {{c}_{2}}$are arbitrary constants)
	The differential equation for the line $y=mx+c$ is (where c is arbitrary constant)
	The differential equation of all straight lines passing through the point $(1,\,-1)$is
	The differential equation of the family of curves ${{y}^{2}}=4a(x+a)$, where a is an arbitrary constant, is