Saved Bookmarks
| 1. |
X= √( √ 5+1)/( √ 5-1) show that x^2-x-1=0 |
|
Answer» X=√√{(5+1)/(√5−1)} =√{(√5+1)(√5+1)/(√5+1)(√5–1)} (MULTIPLY by (√5+1) =√{(√5+1)^2/4} =(√5+1)/2. then the keep VALUE of x in equation x SQUARE - x - 1 = 0 |
|