Question

Find the 4 terms in the sequence given
`an=n^2+4`

Answer 1

a₁ = 5

a₂ = 8

a₃ = 13

a₄ = 20

Explanation:

Given sequence formula

aₙ = n² + 4

Requirement of the question

Find the 4 terms in the sequence

Substitute 4 values into the sequence formula

a₁ = (1)² + 4 = 1 + 4 =
`\Large\boxed{5}`

a₂ = (2)² + 4 = 4 + 4 =
`\Large\boxed{8}`

a₃ = (3)² + 4 = 9 + 4 =
`\Large\boxed{13}`

a₄ = (4)² + 4 = 16 + 4 =
`\Large\boxed{20}`

Hope this helps!! :)

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