Solution: What is the differential equation of the family of parabolas?

Solution: Find the differential equations of the family of lines passing through the origin

Solution: Solve the linear equation: dy/dx + y/x = x^2

Solution: Solve (x+y)dy = (x-y)dx

Solution: Solve xy’ (2y-1) = y(1-x)

Solution: Find the general solution of y’ = ysec x

Solution: Find the differential equation whose general solution is y=C_1 x+C_2 e^x

Solution: Solve (y-√(x^2+y^2))dx-xdy = 0

Solution: What is the solution of the first order differential equation y(k+1)=y(k)+5

Solution: Solve the differential equation dy-xdx=0, if the curve passes through (1, 0)?