Page 66 - Math Grade 11 (Advance)
P. 66

PROEUS DARA

                 ~msg tan~ =   tan(-~)    X     ~ + k:rt  ,  X=- S + 2kJt
                                                              1t
                 u         2            '   2 = -  4
                           X
                        tan- =  tan~      ~ = ~ + kn  ,  x  =  2n  +2kn   kEZ  '1
                           2      3    '  2  3           3         '

                                                  n       "'   .   2n
                                           X  = - S + 2k'Jt  Sl b  X  = 3  + 2k:rt  ,  k E a'  '1


                                                                 2
             0    I  0               ""'   cosx(2sinx + 3,fi)- 2cos x- 1
           rutrrHHH      tfjHLhfH!Hu'tH'i'U          1 + sin2x         = 1  '1
                    u




                                                      2
                 fU~ filHuH ti.H  cosx(2 sinx + 3 ,fi)- 2cos  x- l  =  1 + sin2x
                                               2                     2
                       2sinxcosx+3J2cosx-2cos x-1 = 1 + sin2x  ,  2cos x-3J2cosx+2 = 0








                 t = cosx = ,fi  ( YSrun)  '1  t =  cosx = _!_  = cos~  '1
                 1                           2
                                                        ,fi     4

                                                                 '1














                     1
                 2.  -- = cotx+3
                    .  2
                    sm  x




                       2
                m.  8sin x-6sinx = 5  '1






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