meccapruitt1 meccapruitt1
  • 08-01-2017
  • Mathematics
contestada

What are the first three terms of the sequence represented by the recursive formula an=n^2-an-1 if a5=14 1/4

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 18-07-2019

Answer:

  1/4, 3 3/4, 5 1/4

Step-by-step explanation:

Solving for a[n-1], we get ...

  a[n-1] = n^2 -a[n]

Then ...

  a[4] = 5^2 -a[5] = 25 -14 1/4 = 10 3/4

  a[3] = 4^2 -a[4] = 16 -10 3/4 = 5 1/4

  a[2] = 3^2 -a[3] = 9 -5 1/4 = 3 3/4

  a[1] = 2^2 -a[2] = 4 -3 3/4 = 1/4

Then the first three terms are a[1], a[2], and a[3]:

  1/4, 3 3/4, 5 1/4

Answer Link
susankellysingh
susankellysingh susankellysingh
  • 20-03-2021

Answer:

B. 0.25, 3.75, 5.25

just convert what the person above said but into decimals

Answer Link

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