COS AND SIN! PLEASE PLEASE HELP!

COS X= -12/13 , AND SIN X IS NEGATIVE.

1. WHAT IS THE VALUE OF SIN X?
2. ''" TAN X?
3. "" CSC X?
4. "" SEC X?
5. "" COT X?
6. WHICH QUADRANT IS X LOCATED? 1,2,3,OR 4?

THANK YOU SO MUCH!

If cos x = -12/13 and sin x is negative the x would be located in the 3rd quadrant. I wish to could draw you a picture. The -12 runs along the x axis and the -5 runs along y. They are only both negative in the third quadrant.
y = sqrt(13^2 - 12^2) = 5 and since it is in the third quadrant it is negative. Then:
sin x = -5/13
tan x = -5/-12 = 5/12
csc x = -13/5
sec x = -13/12
cot x = -12/-5 = 12/5