Question

Write a possible explicit rule for the nth term of the sequence:
1, 1/2, 1/3, 1/4, 1/5, ...
1.an = 1/n-1
2.an = 1/an-1
3.an = 1/n2
4.an = 1/n

Answer 1

1/n

Answer 2

you sure?

Answer 3

Let's check.
since first term: n is 1, if you plug in 1 in the 1/n, you get one.
second term: n=2, so, 1/n = 1/2.
So my answer is correct
It's good to check :)