Question

The nth term of a number sequence is n2 + 7
(a) Find the first three terms of this sequence.​

Answer 1

9,11,13

Explanation:

(1)2+7

2+7=9

(2)2+7

4+7=11

(3)2+7

6+7=13

Answer 2

8, 11, 16

Explanation:

To find the first 3 terms substitute n = 1, 2, 3 into the n th term formula

`a_(1)` = 1² + 7 = 1 + 7 = 8

`a_(2)` = 2² + 7 = 4 + 7 = 11

`a_(3)` = 3² + 7 = 9 + 7 = 16