Which of the following values are positive?
(a) cos120°
(b) sin210°
(c) tan240°
(d) cos315°
(c) and (b)
(c) and (d)
(a) and (d)
(a) and (b)
240°lies in 3 rd quadrant and tan in 3rd quadrant is positive.
315° lies in 4th quadrant and cos in 4th quadrant is positive.