the maths is damn difficult......!!!
ABD is a rightangled-triangle with ADB=90°
BDC=25°
find angle BAD.
they all believed that PRC scholars' maths is good.....
that is not ture all the time any way.
i really dunno how to do........
actually, i hadn't been stuck by maths before i came here...... i should be able to do it if i were in the high school in china. the education systems in china and singapore are quite different.
anyway, in fact i found the proof that this cannot be worked out using GSP.
waiting for tutor's answer.......... even though he is stupit enough...... but this is posted by him, isn't is?
haha~~~
2 条评论:
Eh……you still awake at that time?I notice the time is 5 am . Weren't you sleepy?
Er.....ofcos NOT......
the timer of blogger is $%$%#%$&*(
get it?
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