mylesphillips96 mylesphillips96
  • 15-02-2018
  • Mathematics
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find the first,fourth, and eight terms of the sequence. a(n)=-2x5^n-1

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Аноним Аноним
  • 15-02-2018
First term  = 2 x 5(1-1) =   2 x 1 = 2
4th term  = 2 x 5^3 =   250
8th term = 2 x 5^7  =  156,250
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