[考古] 台大90B
1 (1-y^2)^1/2
A=∫∫ (1-x^2)^1/2 dxdy
0 0
我看魏徵的書是寫A=3/2
他是直接代 x=cost 進入式子
但不是應該要代 x=rcost 嗎??
我是代 rcost 可是最後算出的答案很怪耶~~
有人有算過這題嗎???謝謝大家囉
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61.65.144.203 07/09, , 1F
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218.34.51.28 07/09, , 10F
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218.166.192.219 07/09, , 11F
218.166.192.219 07/09, 11F