Calculus

👨🏻‍🏫 學術台數學

[匿名]

2015-03-08 11:18 am

http://postimg.org/image/sfbks2lp1/

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回答 (2)

知足常樂

2015-03-08 12:14 pm

✔ 最佳答案

The answer is D.

圖片參考：https://s.yimg.com/rk/HA00430218/o/1105408500.png

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[匿名]

2015-03-08 12:31 pm

The answer is D : a=6 and b=9
Check the steps in this link :

http://i.imgur.com/rb5x0Jt.png?1

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