Question

If the nth term of a number sequence is n2+2 find the first 3 terms and the 10th term

Answer 1

3, 6, 11 and 102

Explanation:

substitute n = 1, 2, 3, 10 into the nth term rule

a₁ = 1² + 2 = 1 + 2 = 3

a₂ = 2² + 2 = 4 + 2 = 6

a₃ = 3² + 2 = 9 + 2 = 11

a₁₀ = 10² + 2 = 100 + 2 = 102