Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x,y) = x2 - y2
A. Relative minimum at (0, 0)
B. Saddle point at (0, 0) and relative maximum at (1, -1)
C. Saddle point at (0, 0)
D. Relative maximum at (0, 0)
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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