f.4 mat, easy!!

🎓 學業台教學

[匿名]

2009-06-09 3:56 am

27^0.5-12^0.5=?
Help!!!

更新1:

help!!!

回答 (3)

用戶7639

2009-06-09 4:09 am

✔ 最佳答案

270.5-120.5
=(9x3)0.5-(4x3)0.5
=3(3)0.5 - 2(3)0.5
=30.5

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[匿名]

2009-06-09 4:33 am

f.4 mat, easy!!
27^0.5-12^0.5=?
Help!!!
2009-06-08 19:56:45 補充

help!!!
ANSWER:=30.5

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用戶98452

2009-06-09 4:10 am

x^(1/2)=開方(x)
姐係
禁機- -
1.73
surd form就
=(開方(9)x開方(3) )-( 開方(4)x開方(3) )
=3開方(3)-2開方(3)
=開方(3)

參考: me

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