6 write the first five terms of
the sequence
defined by an=(-1)^n-1×2^n
​

1 thought on “6 write the first five terms of<br /> the sequence <br />defined by an=(-1)^n-1×2^n<br />​”

1. Step-by-step explanation:

   We have, a

   n

   =(−1)

   n−1

   .2

   n

   Putting n=1,2,3,4 and 5, we get

   a

   1

   =(−1)

   1−1

   ×2

   1

   =(−1)

   0

   ×2=2

   a

   2

   =(−1)

   2−1

   ×2

   2

   =(−1)

   1

   ×4=−4

   a

   3

   =(−1)

   3−1

   ×2

   3

   =(−1)

   2

   ×8=8

   a

   4

   =(−1)

   4−1

   ×2

   4

   =(−1)

   3

   ×16=−16

   and, a

   5

   =(−1)

   5−1

   ×2

   5

   =(−1)

   4

   ×32=32

   The first five terms are 2,−4,8,−16,32

   hope it’s clear .

   If yes mark me as brainliest

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