1. ∫∫y/(x^2y^2)dA, R:0≤x≤1, 0≤y≤1
2. ∫∫rdrdθ, cscθ≤r≤√3secθ, 0≤θ≤π/4
收錄日期: 2021-04-13 19:31:07
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130617000051KK00254