foodalexandre2410 foodalexandre2410
  • 24-10-2019
  • Mathematics
contestada

Write a formula for the sequence of cube numbers: 1, 8, 27, 64, ….

Respuesta :

JeanaShupp
JeanaShupp JeanaShupp
  • 24-10-2019

Answer: [tex]n^3[/tex], where n = 1,2,3,4,.....

Step-by-step explanation:

The given sequence : 1, 8, 27, 64, ….

We observe that the terms are perfect cubes of consecutive integers (starting from 1) .

Terms can be written as:

First term =  [tex]a_1=1=1^3[/tex]

Second term=[tex]a_2=8=2^3[/tex]

Third term = [tex]a_3=27=3^3[/tex]

Fourth term =[tex]a_4=64=4^3[/tex]

Thus , for any nth term ,the formula for the sequence is : [tex]n^3[/tex], where n = 1,2,3,4,.....

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