I have the following problem:
Find and classify the stationary points of:
First I calculate the partial derivatives and set them 0.
fx(x,y)=2/(2x+y+2) - 2
Than I have the following system of linear equations:
2/(2x+y+2) - 2=0
as result I get x=-(y+1)/2 and y=(-2x+1)
I can find no points, for which this holds... Did I do some mistake in my calculations or can I say that for this function I have no stationary points?