y=e^2x-8x
之後話要揾
dy/dx......
唔識.....
之後睇Ans....話
dy/dx=2e^2x - 8
點解.....
我想要Steps.....
有勞各個A.Maths高手幫幫我!!!
A.Maths dy/dx問題求救~~~唔該~~~
2007-09-26 4:54 am
回答 (2)
2007-09-26 5:09 am
✔ 最佳答案
dy/dx = [d(e^2x)/dx] x [d(2x)/dx] - d(8x)/dxdy/dx = [e^2x] x [2] - 8
dy/dx = 2e^2x - 8
p.s. d(e^x)/dx = e^x, 即是d之前和d之後一樣.
2007-09-26 5:09 am
y=e^2x-8x
dy/dx=d/dx(e^2x-8x)
=d/d2x(e^2x)*d2x/dx-8dx/dx
=2e^2x-8
dy/dx=d/dx(e^2x-8x)
=d/d2x(e^2x)*d2x/dx-8dx/dx
=2e^2x-8
收錄日期: 2021-04-13 13:37:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070925000051KK03172