# How do you get a formula of the nth term for this sequence:1, 1/2, 3, 1/4, 5, 1/6...?

##### 1 Answer

Nov 12, 2015

One possibility is

#### Explanation:

The sequence

but we want the reciprocal of all even numbered terms and one way to do this is to use the alternating nature of

(noting that we need to subtract