Sifat-Sifat Nilai Mutlak
4. | x | = √| x² |
Misalnya, x = -3.
| -3 | = √| (-3)² |
| -3 | = √| 9 |
| -3 | = | 3 |
| x |² = x²
5. Misalnya, x = -4.
| -4 |² = (-4)²
| 16 | = 16
6. jika | x | < | y | maka x² < y²
Misalnya, x = 2 dan y = 3.
| 2 | < | 3 |.
2² < 3²
4 < 9