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iren [92.7K]
3 years ago
8

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

Mathematics
1 answer:
leonid [27]3 years ago
8 0

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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