Saved Bookmarks
| 1. |
If x, y and z are all different from zero and ∣∣∣∣1+x1111+y1111+z∣∣∣∣=0, then the value of x−1+y−1+z−1 is (a) xyz (b) x−1y−1z−1 (c) −x−y−z (d) −1 |
|
Answer» If x, y and z are all different from zero and ∣∣ (a) xyz |
|