[微積] 2重積分正負
Q1
∫∫ 1dA = ∫∫ 1dxdy
如果A 是在第一,三象限的正方形,積出來的答案為正??
二,四 負??
Q2
封閉曲線的線積分,不作功所以 = 0??
Q1,Q2觀念是對的嗎?
寒假快樂
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