Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Differential Equations

Question:

\(y=ex-c^{2}\) is the solution of the differential equation

Options:

\(\left(\frac{dy}{dx}\right)^{2}+x\left(\frac{dy}{dx}\right)+y=0\)

\(\frac{d^{2}y}{dx^{2}}=0\)

\(\frac{dy}{dx}=0\)

\(\left(\frac{dy}{dx}\right)^{2}-x\left(\frac{dy}{dx}\right)+y=0\)

Correct Answer:

\(\left(\frac{dy}{dx}\right)^{2}-x\left(\frac{dy}{dx}\right)+y=0\)

Explanation:

Check that \(y=ex-c^{2}\) satisfies the equation given in (d). \(\frac{dy}{dx}=c\hspace{1cm}\) So, \(\left(\frac{dy}{dx}\right)^{2}-x\left(\frac{dy}{dx}\right)+y=c^{2}-xc+cx-x^{2}=0\)