Question

If cosec x.cos x = -1, then find the quadrants in which x lies.​

Answer 1

Answer:

3 or 4

Step-by-step explanation:

cosecx=1/sinx

1/sinx*cosx=cotx

cotx=-1=135 degree or 315 degree = x

hence it may lie at 3 or 4

Answer 2

Answer:

answer is Cosec x . cos x. = 1 lies in 2nd and 4th quadrant

so x lies in 2nd and 4th quadrant