三重積分變換順序後 積分區域的變化？
看了好久還是不懂到底變換後dx dy dz的新區域是如何得知的呢？
ยังไม่มีคำตอบ
เมื่อดูคำถามนี้แล้ว ก็จะเจอคำถามเหล่านี้ด้วย😉
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