表达式23: "b" Subscript, "s" , Baseline equals "y" Subscript, 0 , Baseline minus "a" Subscript, "s" , Baseline "x" Subscript, 0 , Baselinebs=y0−asx0
equals=
11
23
表达式24: "y" equals "a" Subscript, "s" , Baseline "x" plus "b" Subscript, "s" , Baseliney=asx+bs
24
Sekantens hældning
对学生隐藏该文件夹。
25
→ tangentens, når h → 0:
26
表达式27: "h" equals 1.5h=1.5
StartFraction, 1 Over 10 to the 6th power , EndFraction1106
88
27
表达式28: "a" Subscript, "s" , Baselineas
equals=
22
28
表达式29: "a" Subscript, "t" , Baselineat
equals=
negative 1−1
29
Bevis 1: Sekanthældning
对学生隐藏该文件夹。
30
表达式31: StartFraction, StartNestedFraction, 1 NestedOver "x" Subscript, 0 , Baseline plus "h" , EndNestedFraction minus StartNestedFraction, 1 NestedOver "x" Subscript, 0 , Baseline , EndNestedFraction Over "h" , EndFraction1x0+h−1x0h
equals=
22
31
表达式32: StartFraction, StartNestedFraction, "x" Subscript, 0 , Baseline minus left parenthesis, "x" Subscript, 0 , Baseline plus "h" , right parenthesis NestedOver left parenthesis, "x" Subscript, 0 , Baseline plus "h" , right parenthesis times "x" Subscript, 0 , Baseline , EndNestedFraction Over "h" , EndFractionx0−x0+hx0+h·x0h
equals=
22
32
表达式33: StartFraction, StartNestedFraction, negative "h" NestedOver left parenthesis, "x" Subscript, 0 , Baseline plus "h" , right parenthesis times "x" Subscript, 0 , Baseline , EndNestedFraction Over "h" , EndFraction−hx0+h·x0h
equals=
22
33
表达式34: StartFraction, negative 1 Over left parenthesis, "x" Subscript, 0 , Baseline plus "h" , right parenthesis times "x" Subscript, 0 , Baseline , EndFraction−1x0+h·x0
equals=
22
34
→
35
表达式36: StartFraction, negative 1 Over "x" squared , EndFraction−1x20
equals=
negative 1−1
36
når h → 0.
37
Bevis 2: Sekanthældning
对学生隐藏该文件夹。
38
表达式39: StartFraction, "f" left parenthesis, "x" , right parenthesis minus "f" left parenthesis, "x" Subscript, 0 , Baseline , right parenthesis Over "x" minus "x" Subscript, 0 , Baseline , EndFractionfx−fx0x−x0
39
表达式40: StartFraction, StartNestedFraction, 1 NestedOver "x" , EndNestedFraction minus StartNestedFraction, 1 NestedOver "x" Subscript, 0 , Baseline , EndNestedFraction Over "x" minus "x" Subscript, 0 , Baseline , EndFraction1x−1x0x−x0
40
表达式41: StartFraction, negative 1 Over "x" times "x" Subscript, 0 , Baseline , EndFraction−1x·x0
41
→
42
表达式43: StartFraction, negative 1 Over "x" squared , EndFraction−1x20
equals=
negative 1−1
43
når x →
44
表达式45: "x" Subscript, 0 , Baselinex0
equals=
negative 1−1
45
Punkter
对学生隐藏该文件夹。
46
52
技术支持
技术支持
Start black, left parenthesis, "x" Subscript, 0 , Baseline , "f" left parenthesis, "x" Subscript, 0 , Baseline , right parenthesis , right parenthesis End blackx0,fx0
Start #140616, left parenthesis, "x" Subscript, 0 , Baseline plus "h" , "f" left parenthesis, "x" Subscript, 0 , Baseline plus "h" , right parenthesis , right parenthesis End #140616x0+h,fx0+h
