數學題1條(急)
回答 (5)
2007-09-08 4:46 am
✔ 最佳答案
2√12×4√8=2√4‧√3×4√4‧√2
=2(2)‧√3×4(2)‧√2
=4√3×8√2
=32√6
2007-09-09 5:26 am
2√12×4√8
= 2√12×4√(4X2)
= 2√12×4√(2square x2)
= 2√12×2√2
= 4√24
= 4√(4X6)
= 4x2√6
= 8√6
= 2√12×4√(4X2)
= 2√12×4√(2square x2)
= 2√12×2√2
= 4√24
= 4√(4X6)
= 4x2√6
= 8√6
2007-09-08 4:40 am
32根號6
收錄日期: 2021-04-13 13:54:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070907000051KK03296