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Homework Statement
Ok I have this general homogeneous function, which is a C^1 function:
f(tx,ty)=t^k f(x,y)
And then I have to show that this function satisfies this Euler equation:
x\frac{\partial f}{\partial x}(x,y)+y\frac{\partial f}{\partial y}(x,y)=k\cdot f(x,y)
Homework Equations
The Attempt at a Solution
Ok so I have tried to take the derivative, and I get:
x(1\cdot t+1\cdot 0) + y(1\cdot 0+1\cdot t)=xt+yt
But that does not really do the trick, so am I on the right way? And if so what more should I do?