不用計算機使用長除式算法，求下列各平方根的值 (列式計算)。
1.√784
2.√5776
3.√9801
4.√0.3481
5.√10.24
F.2 maths唔識(15 points)
2009-08-28 10:41 pm
回答 (1)
2009-08-28 11:10 pm
✔ 最佳答案
首先搵左佢地係由咩成埋,即係好似搵佢地既L.C.M.條式咁1.√784
=√2x√2x√2x√2x√7x√7
=√4x√4x√49
=2x2x7
=28
2.√5776
=√2x√2x√2x√2x√19x√19
=√4x√4x√361
=2x2x19
=76
3.√9801
=√3x√3x√3x√3x√11x√11
=√9x√9x√121
=3x3x11
=99
4.√0.3481
=√0.59x√0.59
=0.59
5.√10.24
=√2x√2x√2x√2x√2x√2x√2x√2x√0.1x√0.1
=√4x√4x√4x√4x√0.01
=2x2x2x2x2x0.1
=3.2
收錄日期: 2021-04-13 16:48:56
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https://hk.answers.yahoo.com/question/index?qid=20090828000051KK01149