Thursday, January 10, 2008

tough maths

7/10/2007

Ah>>>>> why am I so stupid, spending 2 hours on doing one maths question...feeling so frustrated now ....ánd the point is that it's a dead easy one. I've worked on it over 10 times...and just suddely realised ....''ding!''...oh....
>>I forgot to change the radian back to degree...@@ the whole calculation was correct...
definitely..no silly mistakes again....I çannot afford to waste another 2 hours..

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