The point (0,0) in the domain of f(x, y) = sin(xy) is a point of ___________
(a) Saddle
(b) Minima
(c) Maxima
(d) Constant
I had been asked this question by my college director while I was bunking the class.
My query is from Maxima and Minima of Two Variables topic in division Maxima and Minima of Engineering Mathematics