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89年 - 089 學士後西醫:微積分#84972
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題組內容
2. Evaluate each of the following limits, if it exists. (20%)
其他申論題
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(i) If f has continuous first partial derivatives in a neighborhood of the point (a, b), then f can have all of its directional derivatives at (a, b).
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(j) If fx and fy both exist and equal at (a, b), then f is continuous at (a, b).
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(b) If [x] denotes the greatest integer function, find.
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