Question

The order of the differential equation whose general solution is given by 

y = (c₁ + c₂)cos (x + c₃) - c₄ e^{x + c₅} 

where c₁,c₂,c₃,c₄,c₅ arbitrary constants, is

(a) 5

(b) 4

(c) 3

(d) 2

Answer 1

Correct option: (c) 3

Which is a differential equation of order 3.