(1+1/2) x (1+1/3) x (1+1/4 ) x …….x (1+ 1/x) =1008 1/2 Tìm x cảm ưn ah

2 bình luận về “(1+1/2) x (1+1/3) x (1+1/4 ) x …….x (1+ 1/x) =1008 1/2 Tìm x cảm ưn ah”

1. (1+1/2) × (1+1/3) × (1+1/4 ) × …….× (1+ 1/x) =1008  1/2

   3/2 × 4/3 × …… ×  x+1/x = 1008  1/2

   \frac{3 × 4 × …. × ( x + 1 )}{2 × 3 × ….× x}  = 1008 1/2

   x + 1/2 = 2017/2

   x + 1 = 2017

   x        = 2017 – 1

   x         = 2016

   ->  Vậy  x         = 2016

    

   Trả lời
2. 3/2xx4/3xx…..xx(x+1)/x=1008(1)/2

   [3xx4xx…xx (x+1)]/[2xx3xx…xx x]=1008(1)/2

   (x+1)/2=2017/2

   =>x+1=2017

   =>x=2016

   Vậy x=2016

   @lienlien55098

   Trả lời