I.F. for y ln y $\frac{dx}{dy}$ + x &min

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Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Differential Equations

Question:

I.F. for y ln y $\frac{dx}{dy}$ + x − ln y = 0 is :

Options:

ln x

ln y

ln xy

none of these

Correct Answer:

ln y

Explanation:

I.F. = $e^{\int \frac{dy}{dx}}$ = ln y

Hence (2) is the correct answer.