隐藏 标签 left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , right parenthesisx1,y1
标签
equals=
left parenthesis, 0 , 0 , right parenthesis0,0
6
隐藏 标签 left parenthesis, "x" Subscript, 2 , Baseline , "y" Subscript, 2 , Baseline , right parenthesisx2,y2
标签
equals=
left parenthesis, 4.6 , 3.5 2 , right parenthesis4.6,3.52
7
表达式8: "y" equals StartFraction, "y" Subscript, 2 , Baseline Over "x" Subscript, 2 , Baseline , EndFraction "x" left brace, 0 less than or equal to "x" less than or equal to "x" Subscript, 2 , Baseline , right bracey=y2x2x0≤x≤x2
8
表达式9: tangent to the negative 1st power left parenthesis, StartFraction, "y" Subscript, 2 , Baseline minus "y" Subscript, 1 , Baseline Over "x" Subscript, 2 , Baseline minus "x" Subscript, 1 , Baseline , EndFraction , right parenthesistan−1y2−y1x2−x1
