Question

Find the first 5 terms in the sequence an = 2n - 1

Answer 1

1, 3, 5, 7, 9

Explanation:

`a_n = 2n - 1`

n = 1:

`a_1 = 2(1) - 1 = 2 - 1 = 1`

n = 2:

`a_2 = 2(2) - 1 = 4 - 1 = 3`

n = 3:

`a_3 = 2(3) - 1 = 6 - 1 = 5`

n = 4:

`a_4 = 2(4) - 1 = 8 - 1 = 7`

n = 5:

`a_5 = 2(5) - 1 = 10 - 1 = 9`

Answer: 1, 3, 5, 7, 9