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# Verify that$w _ { x y } = w _ { y x }.$w = ln (2x + 3y)

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In this task we are in essence asked to verify that the mixed partial derivatives theorem holds for the given function $w(x,y)$. The theorem states that if both first and second order partial derivatives are continuous, then the mixed partial derivatives $w_{xy}$ and $w_{yx}$ are the same. The procedure we will use here is straightforward, we will first find $w_{yx}$ and then we will find $w_{xy}$. After finding both expressions, we will compare them to verify the result.

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