試求下列函數的導數dy/dx。
y=4cos(x/2)+sin²x
a-maths~~~~~~~~~
2007-10-20 7:31 pm
回答 (2)
2007-10-20 7:47 pm
✔ 最佳答案
As follows~~~圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/ScreenHunter_02Oct201146.jpg?t=1192852021
參考: Myself~~~
2007-10-20 7:52 pm
y=4cos(x/2)+sin²x
dy/dx= -4[sin(x/2)](1/2) +2*sinx*cosx
dy/dx= -2sin(x/2) + sin(2x)
dy/dx= -4[sin(x/2)](1/2) +2*sinx*cosx
dy/dx= -2sin(x/2) + sin(2x)
參考: myself
收錄日期: 2021-04-23 20:32:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071020000051KK01419