Saved Bookmarks
| 1. |
lfr + 1 = 9, find the value ofx4 + 14 |
|
Answer» x + 1/x = 9 Sqauring both sides x² + 1/x² + 2 = 81 x² + 1/x² = 79 Sqauring again x⁴ + 1/x⁴ + 2 = 79² x⁴ + 1/x⁴ = 6241 - 2 = 6239 |
|