How do you calculate the partial derivatives/Jacobian for a function of this sort using chain rule? $$z=z(x,y)=f(3xy,\sin (xy))$$ where $f$ is a differentiable function from $\mathbb R^2$ to $\mathbb R$.
2026-03-26 09:26:20.1774517180
What are the partial derivatives and Jacobian for this function?
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