有題數計極都唔識~我form2

👨🏻‍🏫 學術台數學

[匿名]

2009-09-13 1:56 am

http://hk.geocities.com/wing598/maths22.JPG
答案係xy既11次方
點計??救命~~

更新1:

高手呀~~ 唔該曬係咪姐係 x可以移去左邊 y可以移去右邊??

更新2:

完全明白-Good-

回答 (3)

用戶9112

2009-09-13 2:05 am

✔ 最佳答案

(x2y)2 除 (x / y3)3
= x2*2y2 * (y3 / x)3
= [(x4)/(x3)][y2(y3)3]
= x4-3y2+3*3
= xy11

2009-09-12 18:42:44 補充：
xy左右移動沒關係,最緊要係份子子數係正,份母子數係負.
乘數子數就加,除數子數就減.

👍 0 👎 0

[匿名]

2009-09-13 6:57 am

Wrong,

You Can't xy左右移動,
Because,11 Is The Power Of y, Not x,
By Calculation,You Know y^2 y^9=y^11,So 11 Can't Move To x.

👍 0 👎 0

a63805281

2009-09-13 2:07 am

(x2y)2/(x/y3)3
=x4y2/(x3/y9)
=x4y2*(y9/x3)
=xy11

👍 0 👎 0

收錄日期: 2021-04-23 23:20:47
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