I'm working on this question, and I have no idea where they are getting this.(adsbygoogle = window.adsbygoogle || []).push({});

They said to differentiate f(xt,yt) with respect to t where.

Note: [itex]f_x[/itex] denotes partial derivative with respect to x.

The answer is coming up as, from the book...

[tex]f_t * x * t^{(n-1)} + f_t * y * t^{(n-1)}[/tex]

Note: If it helps, f is a function such that f(xt,yt) = t^n * f(x,y).

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# Homework Help: Simple Question about Partial Derivatives

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