Question

If Cos 12/13, Sin<0, how do you find tan in simplest form?

Answer 1

`-5/12`

Explanation:

If cos a = 12/13. angle is in either 1st quadrant or in the 4th.

`sin a = +-5/13` As sin a < 0, a is in the 4th quadrant. So, `sin a =-5/13`.

Thus, the ratio sin a/ cos a = tan a = -5/12..