cos(x) tan(x) 8/x -9/x sin(x)_Mapping of mathematical functions

Mathematics

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cos(x)
tan(x)
8/x
-9/x
sin(x)

Function Analytic Expresions:
y= cos ( x )
y= tan ( x )
y= 8 / x
y= -9 / x
y= sin ( x )

New addition:Lenders ToolBox module（Specific location：Math OP > Lenders ToolBox ），welcome。