You can use GeoGebra’s built-in tools to plot trigonometric functions. You can plot 
sin(x) (sine)         
asin(x) (the inverse function of sine)         
cos(x) (cosine)         
acos(x) (the inverse function of cosine)         
tan(x) (tangent)         
atan(x) (the inverse function of contangent) 
     GeoGebra Instruction 1
Algebra     View     and         Graphics     View     under         View     in         Menu.         Algebra View, type         f = sin(x)
and press Enter. The graph then appears in Graphics View. 
You can also modify the expression the way you’re used to doing, such as by adding an equilibrium .
Example 1
Plot the function
for  in GeoGebra 
In an empty row in GeoGebra, type  
f = Function
and choose
Function(<Function>, <Start x-Value>, <End x-Value>)
from the suggestions that pop up. Replace the content of each field:
<Function>         is         replaced         with         2*sin(2x+pi)+5         
<Start         x-Value>         is         replaced         with         0         
<End         x-Value>         is         replaced         with         2*pi 
Press Enter. The plot will appear in Graphics View.