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प्रश्न
Find the cube-root of -2744000
उत्तर
-2744000
= `root(3)(-2744000)`
| 2 | 2744000 |
| 2 | 1372000 |
| 2 | 686000 |
| 7 | 343000 |
| 7 | 49000 |
| 7 | 7000 |
| 10 | 1000 |
| 10 | 100 |
| 10 | 10 |
| 1 |
= `sqrt(-2 xx -2 xx -2 xx -7 xx -7 xx -7 xx -10 xx -10 xx -10)`
= -2 x -7 x -10
= -140
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