tan X = sec X cosec X

i had my add math class this morning until afternoon.

so far it was quite ok for me,


until i met this question...

tan X = sec X cosec X

the question asked me to prove this statement.

what the heck is this question?

how am i gonna prove it?

and suddenly i felt very sleepy
i guessed i was falling into a deep sleep...

krohh... krohh...