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了解如何简化大量Sqrt的平方根（128）

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了解如何找到数字的平方根。为了找到一个数字的平方根，我们确定要查找其平方根的那个数字是否是一个理想的平方。这是通过确定一个数字来完成的，当该数字升为2的幂时，会给出我们要查找其平方根的数字。如果存在这样的数字，则该数字是所需的平方根。如果我们要查找其平方根的数字不是一个完美的平方，我们将该数字表示为该数字最大的完美平方因数的乘积。然后，所需的平方根是最大的平方根因子的平方根以及作为根数剩下的数字的其他因子（我们要查找其平方根）。

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28 comments

  16. Hey, I would like to know how you got 64 and 2 in the first place? Because I saw your reply to another’s comment but it didn’t make any sense to me.

  20. I have a better way.. …. for that u need to know multiplication and tables up to 13 ……ex.for 128 root . 11*11= 121 and 12*12=144 so128 root should be between them now the difference between 121 and128 is less than that between 144 and 121 so the decimal points should be more near to or less than 0 .5 …..and since decimaldoes not have that big effect in calculation so I assume it to 0.3 so √128 is 11.3 …..I did not use any calculators thought

  21. ?????…..and what to do if the number is not even ???… .no way was it helpful…..what do u think we are fools????….in the end there is no short cuts it completely depends on one practice in mathematics

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