Giải thích các bước giải:
`(1 + 1/(1 . 3))(1 + 1/(2 . 4))......(1 + 1/(2014 . 2016))`
`= 4/(1 . 3) . 9/(2 . 4) . 16/(3 . 5) .......4060225/(2014 . 2016)`
`= (2^2)/(1 . 3) . (3^2)/(2 . 4) ..........(2015^2)/(2014 . 2016)`
`= (2^2 . 3^2 ......2015^2)/(1 . 3 . 2 . 4 . 3 . 5 ..........2014 . 2016)`
`= (2 . 3 . 4 . 5 .......2015)/(1 . 2 . 3 ........2014) . (2 . 3 . 4 ......2015)/(3 . 4 . 5 ....2016)`
`= 2015 . 2/2016`
`= 2015 . 1/1008`
`= 2015/1008`