5 . 反三角函数定义 5. The definition of inverse trigonometric functions

[反三角函数的定义域与主值范围] [Domain and inverse trigonometric functions of the main range of values]

函数 Function

主值记号 Main value mark

定义域 Domain

主值范围 Main value range

反正弦 Arcsine

If the ,则 Then

反余弦 Inverse cosine

If the ,则 Then

反正切 Arctangent

If the ,则 Then

反余切 Anti cotangent

If the ,则 Then

反正割 Anyway, to cut

If the ,则 Then

反余割 Cosecant

If the ,则 Then

一般反三角函数与主值的关系为 General relationship with the principal value of the inverse trigonometric functions

式中n为任意整数. Wherein n is an arbitrary integer.

[反三角函数的图形与特征] [Graphics and features inverse trigonometric]

   反正弦曲线 Arc sine curve                                         反余弦曲线 Inverse cosine curve

                                    

                         

拐点(同曲线对称中心): Inflection (with the curve center of symmetry):                    拐点(同曲线对称中心): Inflection (with the curve center of symmetry):

,该点切线斜率为 1 The slope of a tangent point                  ,该点切线斜率为- 1 The slope of the tangent point - 1

   反正切曲线 Arc tangent curve                            反余切曲线 Anti cotangent curve

                              

                    

   拐点(同曲线对称中心): Inflection (with the curve center of symmetry):                      拐点: Inflection point:

,该点切线斜率为 1 The slope of a tangent point                           ,该点切线斜率为- 1 The slope of the tangent point - 1

   渐进线: Asymptote:                                        曲线对称中心: Curves center of symmetry:

                                                                           渐近线: Asymptote:

   反正割曲线 Anyway, to cut the curve                                                   反余割曲线 Cosecant curve

                                   

               

   顶点: Vertex:                              顶点: Vertex:

   渐近线: Asymptote:                                         渐近线: Asymptote: