[微積] chain rule

看板Math作者 (ytyt)時間12年前 (2013/11/14 21:13), 編輯推噓2(2推 0噓 0→)
留言2則, 1人參與, 最新討論串1/1
1.Suppose y= is a curve that always lies above the x-axis and never has a horizontal tangent,where f is differentiable everywhere.For what value of y is the rate of change of y五次方 with respect to x eighty times the rate of change of y with respect to x? 個人不太懂題目後半段的意思ˊˋ??不知怎解 2.(a)Write｜x｜= 開根號x的平方 and use the Chain Rule to show that d｜x｜/dx = x/｜x｜ 第二題不知前面的提示有何意義啊?? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.168.103.10
推
11/15 02:46, , 1F
1. d(y^5)/dx=8 dy/dx
11/15 02:46, 1F
推
11/15 02:49, , 2F
2. d sqrt x^2 /dx=1/(2 sqrt x^2) *2x=x/|x|
11/15 02:49, 2F
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文章代碼(AID): #1IXCoMcN (Math)