Saved Bookmarks
| 1. |
3/4+5/36+7/144+.......+17/5184+19/8100 find the value |
| Answer» ={(2n+1)/[n(n+1)]^2} for n=[1,9]={1/n^2-1/(n+1)^2}=1/1^2-1/10^2=1-0.001=0.99=9/100 | |