bookie3132
bookie3132 bookie3132
  • 14-07-2016
  • Mathematics
contestada

Find the 7th term of a geometric sequence with t1=5 and r = -2.

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ikay1
ikay1 ikay1
  • 14-07-2016
An=Asub1(r)n-¹
=5(-2)7-¹
=5(64)
A7=320
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