WOAH. amath is seriously killing me please!
i spent like HALF AN HOUR on this question:

PROVE:

1 - cos²x____ ≡ cosec²x - 1
tan²x - sin²x

omg it's like so IRRITATING!
anyway, went back to school today for like only ONE hour.
the school was super empty please!
haha so i made huiling and meiting come back with me (:
they so rock the world k!

yeah, school's starting after our 4-day break (:
YAY! RIGHT -.-
O level orals start next week.
so yeah, IT'S COMING. REALLY SOON.
okay so i should get off the com to study right?
that's what most of my classmates are doing.
yep, so i guess that's it.
再见了！ (: