3 years ago

Find the first,fourth, and eight terms of the sequence. a(n)=-2x5^n-1

1 answer:

5 0

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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