How to find expressions for f_{x x} and f_{y y}

Teddy Dillard

Teddy Dillard

Answered question


How to find expressions for fxx and fyy for the multivariable function f(x,y)=ln(x2y)+y3x2?

Answer & Explanation

Lindsey Gamble

Lindsey Gamble

Beginner2022-01-05Added 38 answers

For finding fx, we have to differentiate f(x,y) with respect to x as follows:
Now, for finding fxx, differentiate fx with respect to x.
Try in the same way for fyy.


Beginner2022-01-06Added 26 answers

Thanks, it's helpful because it shows the way. Anyway, there is a2 after x at last.

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