Question

Find the order of the D.E \(\frac{7d^2 y}{dx^2}-\frac{6dy}{dx}\)=1

(a) 4

(b) 2

(c) 3

(d) 1

This question was addressed to me by my school principal while I was bunking the class.

I want to ask this question from Differential Equations Basics-1 topic in portion Differential Equations of Mathematics – Class 12

Answer 1

Correct choice is (b) 2

Best explanation: The highest order derivative in the given differential equation is \(\frac{d^2 y}{dx^2}\). Therefore, the order of the D.E is 2.