tanx的原函数是什么

如题所述

第1个回答  2023-08-08
tan(arctanx)=x (x∈R)
sin(arcsinx)=x (-1<=x<=1)
cos(arccosx)=x (-1<=x<=1)

sin(arccosx)=1-x^2 (-1<=x<=1)
cos(arcsinx)=1-x^2 (-1<=x<=1)

arcsin(sinx)=x (-π/2<=x<=π/2)
arccos(cosx)=x (-π/2<=x<=π/2)
arctan(tanx)=x (-π/2<x<π/2)
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