What is the integrating factor of dy/dx = x + y?

Homogeneous & Linear Differential Equations · Question 67 of 120

Question 67

EasyOriginal question

What is the integrating factor of $\frac{dy}{dx} = x + y$ ?

e^{- x}

Correct answerYour answer

e^{x}

Correct answerYour answer

e^{- y}

Correct answerYour answer

x

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Worth noting

$e^{x}$ reads $P = +1$ off $\frac{dy}{dx} = x + y$ ; moving $y$ to the left makes it $-1$ .

Ten questions from Homogeneous & Linear Differential Equations, at your own pace.

Ten questions from Homogeneous & Linear Differential Equations, at your own pace.