InterviewSolution
Saved Bookmarks
| 1. |
\sqrt{7+\sqrt{7+\sqrt{7+\sqrt{7}}}} |
|
Answer» suppose x=root(7+root(7+root(7)+.....))so x=root(7+x)so x^2=7+xso x^2-x-7=0so x=(1+root(1+28))/2 or (1-root(1+28))/2so x=(1+root(29))/2 or (1-root(29))/2 |
|