unknown07
unknown07 unknown07
  • 12-04-2017
  • Mathematics
contestada

!!! PLEASE HELP ME !!!

PLEASE HELP ME class=

Respuesta :

ANChelp
ANChelp ANChelp
  • 16-04-2017
recursive formula= a(n)=a(1)(n-1)+d
                               a(n)= 9(n-1)+2

explicit formula= a(n)= a(1)+(n-1)d
                           a(n)= 9+(n-1)2

12th row= a(12)=9+(12-1)2
                 a(12)=9+11(2)
                 a(12)=9+22
                 a(12)=31
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