- #1
physicsidiot1
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Homework Statement
Use Clairaut's Theorem to show that is the third order partial derivatives are continuous, then fxxy=fyxy=fyyz
Clairaut's Theorem being: fxy(a,b)=fyx(a.b)
Homework Equations
fxyy=d/dy(d2f/dydx)=d^3f/dy^2dx
The Attempt at a Solution
Tried to differentiate the second partial derivatives but it didn't work out.