kaemongeorge1 kaemongeorge1

19-10-2018
Mathematics

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

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Аноним Аноним

19-10-2018

Answer:

2, 16 and 256.

Step-by-step explanation:

Just substitute for n:-

first term ( when n = 1) = 2 * 2^(1-1)

= 2 * 1 = 2

4th term = 2 * 2^(4-1) = 16

8th term = 2* 2^(8-1) = 256

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