Koyy!
2020-05-13T13:24:32+00:00
问题要求把二重积分化为累次积分,如果被积区域是直线围成的,不含未知数,怎么办?
D:-1≤x≤1,0≤y≤2
D:-1≤x≤1,0≤y≤2
Koyy!
2020-05-13T13:24:32+00:00
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Koyy!