Answer:
a) 4
b) 2
Explanation:
I use this sentence to remember quadrants:
All Students Take Coffe
- All trigs are positive in 1 Quadrant
- Sin and (cosine) is positive in 2 quadrant
-Tan and (Cotan) are positive in 3 quadrant
- Cos and (Sec) are positive in 4 quadrant
all other trigs other than those are negative.
a) cos is positive in 1 and 4 quadrant. Csc is reciprocal of Sin and is negative in 3 and 4 quadrant. 4th quadrant satisfies both conditions.
b) csc is reciprocal of Sin and is positive in 1 and 2 quadrants. Sec is reciprocal of Cos and is negative in 2 and 3 quadrant. 2nd quadrant fulfills both conditions.