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The nth term of a sequence is n^2+20
work out the first 3 terms

User Aurril
by
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1 Answer

4 votes

Answer:

21, 24, 29

Explanation:

To calculate the first 3 terms, substitute n = 1, 2, 3 into the rule, that is

a₁ = 1² + 20 = 1 + 20 = 21

a₂ = 2² + 20 = 4 + 20 = 24

a₃ = 3² + 20 = 9 + 20 = 29

User Skapral
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