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Question
Find the cube-root of 2.744
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Solution
2.744
= `root(3)(2744/1000)`
| 2 | 2744 |
| 2 | 1372 |
| 2 | 686 |
| 7 | 343 |
| 7 | 49 |
| 7 | 7 |
| 1 |
`= root(3)((2 xx 2 xx 2 xx 7 xx 7 xx 7)/(10 xx 10 xx 10)`
= `(2 xx 7)/(10)`
= `(14)/(10)`
= 1.4
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