The order of the differential equation (d2y/dx2) + 2(dy/dx)+ sinx = 5 is-

1 2 3 4

2

The order of a differential equation is equal to the highest order derivative involved in differential equation so in given differential equation  (d2y/dx2) + 2(dy/dx)+ sinx = 5  the highest derivative is of order 2 so the order of given differential equation is 2.