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erica [24]
4 years ago
5

Find the first fourth and eighth terms of the sequence a(n)=-2*5^n-1

Mathematics
1 answer:
agasfer [191]4 years ago
6 0
A(1)=2*5^1-1=2*5^0=2*1=2
a(4)=2*5^4-1=2*5^3=2*125=250 
a(8)=2*5^8-1=2*5^7=2*78,125=156,250
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