Question

1. The nth term of a sequence is n3 - 5

Write down the first three terms of this sequence



nedzs​

Answer 1

- 4, 3, 22

Explanation:

To obtain the first three terms, substitute n = 1, 2, 3 into the n th term rule

n = 1 → 1³ - 5 = 1 - 5 = - 4

n = 2 → 2³ - 5 = 8 - 5 = 3

n = 3 → 3³ - 5 = 27 - 5 = 22

The first 3 terms are - 4, 3, 22