I met a few people from there, its pretty cool, not that nerdish =D Just wondering do you catch the train from Parra? Coz I met this girl there who was a friend of a friend of mine from ur skool, but this was like months ago o.o And you remind me of her somehow o.o
UPDATED
A question from our yearly:
If sin A = 5/7 and A is obtuse, find the exact value of tan A.
Shit... year 11 work, sin on a obtuse triangle o.o I give up =D Is that 2 unit? Looks like general maths lolz
Probably =D But this is year 10 ^_^ =P I've used that method many times before and I always got full marks for it. But he asked for the answer not the working out =D But if you trying to give me advice about the risks in Senior levels, thanks ^_^
I done it using the subsitutional method, it was easy but its gonna be a pain in the arse to type it up.
To show that CF² + BE² = 3(AD² + DE²) You will need to subsitute the squares.
For mine i made AB= 2 and GD = 3
CG= 1 and GF = 3 So using pythag theorm FC²= 10
AB = 2 and B somewhere...