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发表于 13-1-2010 09:48 PM
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蓝色是f(x)=(x-2)^2
红色是f^-1(x)
绿色代表y=x (reflection line)
Look at the diagram ,where i ...
walrein_lim88 发表于 13-1-2010 08:45 PM 
可是考试的时候不会有graph paper给我plot graph~
sketch的话只能看到它们有1个point intersect,不过找不到value, 也很难看到它们intersect at y=x...  |
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发表于 13-1-2010 09:50 PM
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回复 外星護法
对,一起加油吧今年的stpm
Log 发表于 13-1-2010 09:30 PM 
那你一定要多多指教下我~  |
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发表于 13-1-2010 10:04 PM
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回复 21# 外星護法
所以的skecth时候要as perfect as possible |
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发表于 13-1-2010 10:25 PM
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可是考试的时候不会有graph paper给我plot graph~
sketch的话只能看到它们有1个point intersect,不过 ...
外星護法 发表于 13-1-2010 09:48 PM 
一定要SKETCH好来,不能随便SKETCH
我SKETCH的时候,都量好来的。 |
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发表于 14-1-2010 08:48 PM
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谢谢指教~ 
有些graph难sketch下~  |
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