find the surface area of the portion S of the cone z^2 =x^2 +y^2 .where z >=0 contained within the cylinder y^2 + z^2 <= 1
答: π
所求圖形是在哪呢? 有點找不到投影區域....
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謝謝
兩方程式(圓椎和圓柱)所交出的圖形 求其表面積
2015-04-02 8:00 pm
回答 (1)
2015-04-03 4:27 am
收錄日期: 2021-04-24 10:16:51
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https://hk.answers.yahoo.com/question/index?qid=20150402000010KK01422