5 θ secθ+θ tanθ?
回答 (1)
2016-10-14 12:14 am
✔ 最佳答案
SoldSecθ/dθ=SeCθTanθ
dTanθ/dθ=Sec^2 θ
y=5θSecθ+θTanθ
dY/dθ
=d(5θSecθ+θTanθ)/dθ
=d5θSecθ/dθ+dθTanθ/dθ
=5θ*dSecθ/dθ+5Secθ+θ*dTanθ/dθ+Tanθ
=5θSecθTanθ+5Secθ+θ*Sec^2 θ+Tanθ
收錄日期: 2021-04-30 22:00:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20161013091512AAsNKvr