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中三數學 超急 10點
2008-10-31 6:46 pm
回答 (6)
2008-11-01 7:03 pm
✔ 最佳答案
As follow AS~~圖片參考：http://www.photo-host.org/img/353337screenhunter_01_nov._01_10.58.gif
2008-11-01 11:04:34 補充：
打錯
唔係138係128。
2008-11-01 6:22 am
(2x2y3)-5
---------------------
(-2x3)2
2-5x-10y-15
= ---------------------
(-2)2x6
=2-5-(2)x-10+(-6)y-15
=2-7x-16y-15
1
=-------------------------
27x16y15
2008-10-31 22:23:46 補充：
(2x^2y^3)^(-5)
---------------------
(-2x^3)^2
2008-10-31 22:24:20 補充：
2^(-5)x^(-10)y^(-15)
= ---------------------
(-2)^2x^6
2008-10-31 22:24:56 補充：
=2^[-5-(2)]x^[-10+(-6)]y^(-15)
2008-10-31 22:25:15 補充：
=2^(-7)x^(-16)y^(-15)
2008-10-31 22:25:38 補充：
1
=---------------------
2^7 x^16 y^15
2008-10-31 22:25:57 補充：
上標顯示有問題
---------------------
(-2x3)2
2-5x-10y-15
= ---------------------
(-2)2x6
=2-5-(2)x-10+(-6)y-15
=2-7x-16y-15
1
=-------------------------
27x16y15
2008-10-31 22:23:46 補充：
(2x^2y^3)^(-5)
---------------------
(-2x^3)^2
2008-10-31 22:24:20 補充：
2^(-5)x^(-10)y^(-15)
= ---------------------
(-2)^2x^6
2008-10-31 22:24:56 補充：
=2^[-5-(2)]x^[-10+(-6)]y^(-15)
2008-10-31 22:25:15 補充：
=2^(-7)x^(-16)y^(-15)
2008-10-31 22:25:38 補充：
1
=---------------------
2^7 x^16 y^15
2008-10-31 22:25:57 補充：
上標顯示有問題
參考: 中三學生, 次次QUIZ都是最高分
2008-11-01 4:54 am
[(2x²y^3)^-5]/(-2x^3)²
=[(2^-5)(x^-10)(y^-15)]/(-2)²(x^6)
=[(32^-1)((x^-10)(y^-15)]/4x^6
=1/(128x^16y^15)
=[(2^-5)(x^-10)(y^-15)]/(-2)²(x^6)
=[(32^-1)((x^-10)(y^-15)]/4x^6
=1/(128x^16y^15)
參考: 會考數學拿c既人~
2008-10-31 8:26 pm
(2 x^2 y^3)^-5 / (-2 x^3)^2
=2^-5 x^-10 y^-15 / (-2)^2 x^6
=1/ 2^2+5 x^6+10 y^15
=1 / 128 x^16 y^15
=2^-5 x^-10 y^-15 / (-2)^2 x^6
=1/ 2^2+5 x^6+10 y^15
=1 / 128 x^16 y^15
參考: 自己
2008-10-31 7:03 pm
問題
= (2^-5X^-10Y^-15) /(2^2X^6)
= 1/(2^7X^16Y^15)
= (2^-5X^-10Y^-15) /(2^2X^6)
= 1/(2^7X^16Y^15)
2008-10-31 7:01 pm
= (2^-5X^-10Y^-15) /(2^2X^6)
= 1/(2^7X^16Y^15)
= 1/(2^7X^16Y^15)
收錄日期: 2021-04-23 20:34:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081031000051KK00413