阿摩線上測驗
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阿摩線上測驗
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(4) Find all critical points of the function
f(x,y) =x³- бху - у², -∞ ＜x ＜∞ and - o∞ ＜y＜ 0∞,
and classify each critical point as a location where a local maximum, local minimum, saddle point occurs.