Page 63 - modul trigonometri_Neat
P. 63

Graph of trigonometric function y = cos x

         Y

                                                            √3
                                                        ( ,   )
                                                         6 2
                                                             1
                                                         ( , )
                                                          3 2
                                                           
                                                        ( , 0)
                                                         2                                                   y = cos x

                                                        2   1
                                                       (   , )
                                                         3 2




                                                                                                                    X

















                                      The graph domain function y = f(x) = cos x above  Df = [0,
                                      2  ] and the yield area (range) is Rf = [-1, 1].


                                  c.  Drawing Tangent Function Graphics

                                       Function graph y = tan x with domain 0 ≤    ≥ 2  .

                                                       
                    X              0                      2      3      5         4   3   7        2  
                                       6    4    3   2     3      4      6         3     2     4
                    y = tan x      0   √3 1     √3   -   −√3     -1      √3 0     √3 -       -1  0
                                                                      −
                                       3                                  3        3
















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