推 future1234:柱座標跟stoke's 算看看~ 203.67.210.63 06/22 16:56
推 LeoRen:用stoke's即可,先找C的參數式r(θ),然後積118.161.145.206 06/22 19:16
→ LeoRen:F.dr118.161.145.206 06/22 19:16
→ chat543:算出來答案是"兀"~是對的嗎?125.229.195.125 06/22 21:12
→ LeoRen:我計算得16π118.161.145.206 06/22 21:35
→ chat543:差真多= =~可以交我怎嚜算嗎?125.229.195.125 06/22 21:41
→ LeoRen:抱歉 忘了用dr去算 不是16π 我回在版上 118.161.147.78 06/22 21:52
→ chat543:感恩^^"125.229.195.125 06/22 21:55