doomsdaydeadra
doomsdaydeadra doomsdaydeadra
  • 25-10-2017
  • Mathematics
contestada

What is the 30th term in a sequence given by the explicit function: A(n) = -1 + (n-1)2

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elhamrah11
elhamrah11 elhamrah11
  • 25-10-2017
It'll be A(30) = -1 + (30-1)2

The common difference is 2 
The first term is -1 
First subtract 30 from 1 you get 29
29 times 2 = 58 
58 - 1 = 57 

The 30th term in this secuence is 57 
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