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2015-11-14T18:46:04+05:30

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U can find square roots by prime factorisation & long devision , I am explaining you prime factorisation ,


Like , we have to calculate √16 , so we'll do it as ,

2 | 16
2 | 8
2 | 4
2 | 2
| 1

Now make pairs of same numbers , like in this all are 2's so making pairs & write the number only 1 time of the pair , like here we are getting 2 & 2 ,

Just multiply them = 2×2 = 4

so , √16 = 4
1 5 1