FUCK MAN! i failed my test for one fucking lame reason. i cant log in into blackboard. so i do Alfred's question. then i logged in to my test with jiajun's laptop. i thought the questions are the same. THEN I COPIED THE ANSWER IN! AND I GOT 40 IN THE END!!!! ARGH!!! 5% OF MY MATHS!!!!!!!!!!!!!!!!!!!!! WALAO EH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!