Q. The order of the differential equation whose solution is $y = a\cos x + b\sin x + ce^{- x}$, is

A) $3$
B) $1$
C) $2$
D) $4$
Explanation

The correct answer is Option A: $3$.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.