46Calculate the limit of

(                                     )
                  ÞÞÞ−n                     (              1              )
  -−n--------------Γ-−-1-−n--------−1-  =  1∕(1−-ÞÞÞ-)-+-ℛ−nℛ-−1∕(1−-ℛ-−1)
  ÞÞÞΓ ∕(1− ÞÞÞR )− (1 − ℛ  ℛ   )∕(1− ℛ   )            R
(52)