Question

If tan theta = 2 and sin theta < 0, what would the exact value of csc theta be?

Answer 1

Try to recall your memories and express tan and csc in terms of sin and cos :)

Answer 2

If you still don't remember,
sin x = sin x
cos x = cos x
tan x = sin x / cos x
csc x = 1 / sin x
sec x = 1 / cos x
cot x = cos x / sin x

Answer 3

Find out which quadrant it is :)

Answer 4

The CAST mnemonic :)