Show that the given equation is not exact but becomes exact when multiplied by the given integrating factor. Solve the equation.
So first, and . Thus, and
So this is inexact.
Then multiplying everything by µ we get and . Thus, and . So now they are exact
I have chosen to integrate N first since it's a bit easier than M. So integrating N I get
Then I differentiated this with respect to x getting
Then I compared this to M. . So from this I get and then making my final answer .
But according to my book the final answer is only . I'm not sure where the is going. Help please