有冇分別?
因為我計的正負號錯了.
謝謝....
更新1:
Find dy/dx of each of the following implicit funcyions 1. x^2 y-2 y^2-3=0 My answer is (-2xy)/(x^2-4y) But book answer is (2xy)/(4y-x^2) thx
Find dy/dx of each of the following implicit funcyions 1. x^2 y-2 y^2-3=0 My answer is (-2xy)/(x^2-4y) But book answer is (2xy)/(4y-x^2) thx
收錄日期: 2021-04-23 23:56:15
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https://hk.answers.yahoo.com/question/index?qid=20070408000051KK03505