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Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in _menu_load_objects() (line 579 of /customers/d/a/8/freewiski.be/httpd.www/includes/menu.inc).

vergelijking tan(x)=a

Hoe kunnen we de goniometrische vergelijking tan(x) = a oplossen ?
 
  tan(x) = a
 
 
    let op : we werken in radialen 
 
 
Created by ML