Question

Find the first four terms of the sequence defined below, where n represents the position of a term in the sequence. Start with n = 1

an = n - 3​

Answer 1

-2, -1/2, 0, 1/4

Explanation:

As an = n - 3

when n = 1

then we get

a = 1 - 3

a = -2

when n = 2

then we get

2a = 2 - 3

2a = -1

a = -1/2

when n = 3

then we get

3a = 3 - 3

3a = 0

a = 0

when n = 4

then we get

4a = 4 - 3

4a = 1

a = 1/4

so the first four terms of the sequence are: -2, -1/2, 0, 1/4